UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-Q

[X] Quarterly Report Pursuant to Section 13 or 15(d) of the Securities  Exchange
Act of 1934

For the period ended September 30, 1998

                                       or

[ ] Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange
Act of 1934

For the transition period from               to
                              ---------------  ---------------

Commission File Number 0-8908
                       ------

                       PUBLIC STORAGE PROPERTIES IV, LTD.
                       ----------------------------------
             (Exact name of registrant as specified in its charter)


              California                                            95-3192402
- --------------------------------------------           -----------------------
   (State or other jurisdiction of                            (I.R.S. Employer
    incorporation or organization)                      Identification Number)

          701 Western Avenue
         Glendale, California                                            91201
- --------------------------------------------           -----------------------
(Address of principal executive offices)                            (Zip Code)

Registrant's telephone number, including area code:             (818) 244-8080
                                                                --------------

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports)  and  (2)  has  been  subject  to such  filing
requirements for the past 90 days.

                                    Yes X No
                                       ---  ---




                                      INDEX

                                                                          Page
PART I.   FINANCIAL INFORMATION

Condensed balance sheets at September 30, 1998
     and December 31, 1997                                                   2

Condensed statements of income for the three and
     nine months ended September 30, 1998 and 1997                           3

Condensed statement of partners' deficit for the
     nine months ended September 30, 1998                                    4

Condensed statements of cash flows for the
     nine months ended September 30, 1998 and 1997                           5

Notes to condensed financial statements                                    6-7

Management's discussion and analysis of
     financial condition and results of operations                        8-11

PART II.  OTHER INFORMATION

Item 6  Exhibits and Reports on Form 8-K.                                   12



                       PUBLIC STORAGE PROPERTIES IV, LTD.
                            CONDENSED BALANCE SHEETS



                                                                           September 30,          December 31,
                                                                               1998                   1997
                                                                         ------------------     ------------------
                                                                            (Unaudited)

                                     ASSETS
                                     ------

                                                                                                        
Cash and cash equivalents                                                 $       640,000        $      1,911,000
Marketable securities of affiliate (cost of $6,091,000)                        10,242,000              11,220,000
Rent and other receivables                                                        150,000                 166,000

Real estate facilities, at cost:
     Buildings and equipment                                                   16,278,000              16,031,000
     Land                                                                       5,244,000               5,244,000
                                                                         ------------------     ------------------
                                                                               21,522,000              21,275,000

     Less accumulated depreciation                                            (11,589,000)            (10,898,000)
                                                                         ------------------     ------------------
                                                                                9,933,000              10,377,000
                                                                         ------------------     ------------------

Other assets                                                                      129,000                 144,000
                                                                         ------------------     ------------------

Total assets                                                              $    21,094,000        $     23,818,000
                                                                         ==================     ==================

                        LIABILITIES AND PARTNERS' DEFICIT
                        ---------------------------------

Accounts payable                                                          $       285,000        $         65,000
Deferred revenue                                                                  236,000                 230,000
Mortgage note payable                                                               -                  25,405,000
Note payable to commercial bank                                                21,000,000                  -

Partners' deficit:
     Limited partners' deficit, $500 per unit, 40,000 units
         authorized, issued and outstanding                                    (3,396,000)             (5,200,000)
     General partners' deficit                                                 (1,182,000)             (1,811,000)
     Unrealized gain on marketable securities                                   4,151,000               5,129,000
                                                                         ------------------     ------------------

     Total partners' deficit                                                     (427,000)             (1,882,000)
                                                                         ------------------     ------------------

Total liabilities and partners' deficit                                   $    21,094,000        $     23,818,000
                                                                         ==================     ==================

See accompanying notes.
                                       2



                       PUBLIC STORAGE PROPERTIES IV, LTD.
                         CONDENSED STATEMENTS OF INCOME
                                   (UNAUDITED)



                                                            Three Months Ended               Nine Months Ended 
                                                               September 30,                    September 30,
                                                      -----------------------------   -----------------------------
                                                           1998            1997            1998            1997
                                                      -------------- --------------   -------------- --------------

  REVENUES:

                                                                                                   
  Rental income                                       $  2,255,000    $  2,142,000    $  6,559,000    $  6,013,000
  Dividends from marketable securities of affiliate         84,000          76,000         252,000         217,000
  Other income                                              11,000          31,000          82,000          99,000
                                                      -------------- --------------   -------------- --------------
                                                         2,350,000       2,249,000       6,893,000       6,329,000
                                                      -------------- --------------   -------------- --------------

  COSTS AND EXPENSES:

  Cost of operations                                       508,000         473,000       1,545,000       1,426,000
  Management fees paid to affiliate                        134,000         129,000         394,000         361,000
  Depreciation                                             231,000         222,000         691,000         654,000
  Administrative                                            15,000          18,000          56,000          49,000
  Interest expense                                         405,000         698,000       1,774,000       2,113,000
                                                      -------------- --------------   -------------- --------------
                                                         1,293,000       1,540,000       4,460,000       4,603,000
                                                      -------------- --------------   -------------- --------------

  NET INCOME                                          $  1,057,000    $    709,000    $  2,433,000    $  1,726,000
                                                      ============== ==============   ============== ==============

  Limited partners' share of net income ($60.15 per
    unit in 1998 and $42.68 per unit in 1997)                                         $  2,406,000    $  1,707,000

  General partners' share of net income                                                     27,000          19,000
                                                                                      -------------- --------------

                                                                                      $  2,433,000    $  1,726,000
                                                                                      ============== ==============

                            See accompanying notes.
                                       3


                       PUBLIC STORAGE PROPERTIES IV, LTD.
                    CONDENSED STATEMENT OF PARTNERS' DEFICIT
                                   (UNAUDITED)



                                                                                     Unrealized Gain
                                                  Limited             General         on Marketable     Total Partners'
                                                  Partners            Partners         Securities           Deficit
                                            ------------------  ------------------ ------------------ ------------------

                                                                                                        
Balance at December 31, 1997                $     (5,200,000)   $     (1,811,000)  $      5,129,000   $     (1,882,000)

Unrealized loss on marketable securities              -                   -                (978,000)          (978,000)

Net income                                         2,406,000              27,000             -               2,433,000

Equity transfer                                     (602,000)            602,000             -                  -
                                            ------------------  ------------------ ------------------ ------------------

Balance at September 30, 1998               $     (3,396,000)   $     (1,182,000)  $      4,151,000   $       (427,000)
                                            ==================  ================== ================== ==================

                            See accompanying notes.
                                       4



                       PUBLIC STORAGE PROPERTIES IV, LTD.
                       CONDENSED STATEMENTS OF CASH FLOWS
                                   (UNAUDITED)



                                                                                      Nine Months Ended
                                                                                        September 30,
                                                                                --------------------------------
                                                                                     1998             1997
                                                                                --------------- ----------------

Cash flows from operating activities:

                                                                                                      
     Net income                                                                 $  2,433,000       $  1,726,000

     Adjustments to reconcile net income to net cash provided
         by operating activities

         Depreciation                                                                691,000            654,000
         Decrease (increase) in rent and other receivables                            16,000            (19,000)
         Amortization of prepaid loan fees                                            69,000             69,000
         (Increase) decrease in other assets                                         (54,000)            26,000
         Increase in accounts payable                                                220,000            158,000
         Increase in deferred revenue                                                  6,000             19,000
                                                                                --------------- ----------------

              Total adjustments                                                      948,000            907,000
                                                                                --------------- ----------------

              Net cash provided by operating activities                            3,381,000          2,633,000
                                                                                --------------- ----------------

Cash flows from investing activities:

     Purchase of marketable securities of affiliate                                    -             (1,289,000)
     Additions to real estate facilities                                            (247,000)          (411,000)
                                                                                --------------- ----------------

              Net cash used in investing activities                                 (247,000)        (1,700,000)
                                                                                --------------- ----------------

Cash flows from financing activities:

     Principal payments on mortgage note payable                                 (25,405,000)          (691,000)
     Proceeds from note payable to general partner                                22,000,000              -
     Principal payments on note payable to general partner                       (22,000,000)             -
     Proceeds from note payable to commercial bank                                21,000,000              -
                                                                                --------------- ----------------

              Net cash used in financing activities                               (4,405,000)          (691,000)
                                                                                --------------- ----------------

Net (decrease) increase in cash and cash equivalents                              (1,271,000)           242,000

Cash and cash equivalents at beginning of period                                   1,911,000          2,440,000
                                                                                --------------- ----------------

Cash and cash equivalents at end of period                                      $    640,000       $  2,682,000
                                                                                =============== ================
Supplemental schedule of non-cash investing and financing activities:

     Decrease in fair market value of marketable securities                          978,000            295,000
                                                                                =============== ================

     Unrealized loss on marketable securities                                   $   (978,000)      $   (295,000)
                                                                                =============== ================

                            See accompanying notes.
                                       5



                       PUBLIC STORAGE PROPERTIES IV, LTD.
                     NOTES TO CONDENSED FINANCIAL STATEMENTS
                                   (UNAUDITED)

1.   The  accompanying   unaudited  condensed  financial  statements  have  been
     prepared  pursuant  to the  rules and  regulations  of the  Securities  and
     Exchange Commission.  Certain information and footnote disclosures normally
     included in financial  statements  prepared in  accordance  with  generally
     accepted  accounting  principles have been condensed or omitted pursuant to
     such  rules  and  regulations,   although   management  believes  that  the
     disclosures contained herein are adequate to make the information presented
     not misleading.  These unaudited condensed  financial  statements should be
     read in  conjunction  with  the  financial  statements  and  related  notes
     appearing in the  Partnership's  Form 10-K for the year ended  December 31,
     1997.

2.   In  the  opinion  of  management,   the  accompanying  unaudited  condensed
     financial  statements  reflect all  adjustments,  consisting of only normal
     accruals,  necessary to present fairly the Partnership's financial position
     at September 30, 1998, the results of its operations for the three and nine
     months  ended  September  30, 1998 and 1997 and its cash flows for the nine
     months then ended.

3.   The results of operations for the three and nine months ended September 30,
     1998 are not  necessarily  indicative of the results  expected for the full
     year.

4.   Marketable  securities at September  30, 1998 consist of 381,980  shares of
     common  stock of Public  Storage,  Inc.,  a  publicly  traded  real  estate
     investment trust and a general partner of the Partnership.  The Partnership
     has  designated  its  portfolio of  marketable  securities as available for
     sale. Accordingly,  at September 30, 1998, the Partnership has recorded the
     marketable  securities at fair value,  based upon the closing quoted prices
     of the  securities  at  September  30,  1998.  Changes  in market  value of
     marketable  securities are reflected as unrealized gains or losses directly
     in Partners' Equity and accordingly have no effect on net income.

5.   The Partnership's mortgage note payable matures on October 1, 1998. On July
     1, 1998,  the  Partnership  paid off the  mortgage  note  payable with cash
     reserves and with the proceeds of a $22,000,000  loan from Public  Storage,
     Inc., a general partner of the  Partnership.  The loan from Public Storage,
     Inc.  bears  interest at the fixed rate of 7.2% and matures  June 30, 1999.
     The loan calls for monthly payments of interest only. Principal may be paid
     at any time  without  penalty.  Public  Storage,  Inc.  also  provided  the
     Partnership  with options to extend the loan term  through June 2003.  This
     loan was paid off and  canceled in  September  1998 (see Note 6).  Interest
     paid during the third quarter of 1998 to Public Storage, Inc. was $341,000.

6.   During  September  1998,  the  Partnership   borrowed  $21,000,000  from  a
     commercial  bank.  The loan is unsecured  and bears  interest at the London
     Interbank  Offering  Rate  ("LIBOR")  plus 0.60% to 1.20%  depending on the
     Partnership's  interest  coverage ratio (6.017% at September 30, 1998). The
     loan  requires  monthly  payments of interest  and mature  September  2002.
     Principal may be paid, in whole or in part, at any time without  penalty or
     premium.

                                       6



6.   (continued)

     The loan  proceeds were used to pay off the  Partnership's  note payable to
     Public Storage, Inc.

     The  Partnership has entered into an interest rate swap agreement to reduce
     the impact of changes in interest  rates on a portion of its floating  rate
     debt.  The agreement,  which covers  $11,500,000 of debt through March 2000
     and $4,000,000 from March 2000 through September 2000,  effectively changes
     the interest rate exposure from floating rate to a fixed rate of 5.22% plus
     0.60% to 1.20% based on the Partnership's interest coverage ratio (5.82% as
     of September  30,  1998).  Market gains and losses on the value of the swap
     are  deferred  and  included in income over the life of the  contract.  The
     Partnership  records the differences  paid or received on the interest rate
     swap in interest expense as payments are made or received.  As of September
     30, 1998, the unrealized  loss on the interest rate swap, if required to be
     liquidated, was approximately $90,000.

                                       7



                       PUBLIC STORAGE PROPERTIES IV, LTD.
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FORWARD LOOKING STATEMENTS
- --------------------------

     Management's  Discussion and Analysis of Financial Condition and Results of
Operations   contains  "forward  looking"  statements  that  involve  risks  and
uncertainties  and are based upon a number of  assumptions.  Actual  results and
trends may differ  materially  depending  upon a number of factors.  Information
regarding these factors is contained in the Partnership's  Annual Report on Form
10-K for the fiscal  year ended  December  31,  1997 and in the  reports for the
quarterly  periods on Form 10-Q for the  quarters  ended March 31, 1998 and June
30, 1998.

RESULTS OF OPERATIONS
- ---------------------

     THREE AND NINE MONTHS ENDED  SEPTEMBER  30, 1998 COMPARED TO THREE AND NINE
MONTHS ENDED SEPTEMBER 30, 1997:

     The  Partnership's  net income for the nine months ended September 30, 1998
was $2,433,000  compared to $1,726,000  for the nine months ended  September 30,
1997,  representing an increase of $707,000 or 41%. The Partnership's net income
for the three  months  ended  September  30,  1998 was  $1,057,000  compared  to
$709,000 for the three months ended September 30, 1997, representing an increase
of  $348,000  or 49%.  These  increases  are  primarily  a result  of  increased
operating results at the Partnership's  mini-warehouse  facilities combined with
decreased interest expense.

     Rental income for the nine months ended  September 30, 1998 was  $6,559,000
compared  to  $6,013,000   for  the  nine  months  ended   September  30,  1997,
representing  an increase of $546,000 or 9%.  Rental  income for the nine months
September 30, 1998 was  $2,255,000  compared to $2,142,000  for the three months
ended  September  30,  1997,  representing  an increase of $113,000 or 5%. These
increases are primarily attributable to higher rental rates and occupancy levels
at the Partnership's  mini-warehouse  facilities. The weighted average occupancy
levels at the  mini-warehouse  facilities  were 94% and 92% for the nine  months
ended  September  30, 1998 and 1997,  respectively.  Realized  rent for the nine
months ended  September 30, 1998 increased to $.88 per occupied square foot from
$.83 per occupied square foot for the nine months ended September 30, 1997.

     Interest  and other  income  decreased  $17,000 for the nine  months  ended
September  30,  1998  compared  to the same  period in 1997.  This  decrease  is
primarily  a  result  of the pay off of the  mortgage  note  payable  with  cash
reserves,  which resulted in lower cash balances and consequently  less interest
earned.

                                       8



     Dividend income from marketable  securities of affiliate  increased $35,000
for the nine months ended September 30, 1998 compared to the same period in 1997
due to an  increase in the number of shares  owned in 1998  compared to the same
period in 1997.

     Cost of operations  (including  management  fees paid to affiliate) for the
nine months ended  September 30, 1998 was $1,939,000  compared to $1,787,000 for
the nine months ended  September 30, 1997,  representing an increase of $152,000
or 9%. Cost of operations  (including management fees paid to affiliate) for the
three months ended September 30, 1998 was $642,000  compared to $602,000 for the
three months ended  September 30, 1997,  representing  an increase of $40,000 or
7%. This  increase is mainly  attributable  to  increases  in  management  fees,
property taxes,  repairs and maintenance  and payroll  expenses.  Property taxes
increased due to an increase in property tax rates at some of the  Partnership's
mini-warehouse facilities.

     Interest expense decreased  $339,000 to $1,774,000 in the nine months ended
September 30, 1998 from  $2,113,000 in the same period in 1997. This decrease is
mainly  attributable  to a lower  outstanding  principal  balances  and  reduced
interest  rates on the  Partnership's  indebtedness.  See  Liquidity and Capital
Resources for a discussion of the refinancing of the Partnership's  indebtedness
in the third quarter of 1998.

LIQUIDITY AND CAPITAL RESOURCES
- -------------------------------

     Cash flows from operating activities  ($3,381,000 for the nine months ended
September 30, 1998) have been sufficient to meet all current  obligations of the
Partnership.

     At September 30, 1998, the Partnership  held 381,980 shares of common stock
(marketable  securities) with a fair value totaling  $10,242,000  (cost basis of
$6,091,000  at September  30,  1998) in Public  Storage,  Inc.  The  Partnership
recognized $252,000 in dividends for the nine months ended September 30, 1998.

     The Partnership's mortgage note payable matures on October 1, 1998. On July
1, 1998, the  Partnership  paid off the mortgage note payable with cash reserves
and with the proceeds of a $22,000,000 loan from Public Storage, Inc., a general
partner of the Partnership. The loan from Public Storage, Inc. bears interest at
the fixed rate of 7.2% and  matures  June 30,  1999.  The loan calls for monthly
payments of interest  only.  Principal may be paid at any time without  penalty.
Public Storage,  Inc. also provided the  Partnership  with options to extend the
loan term through June 2003.

     During  September  1998,  the  Partnership   borrowed  $21,000,000  from  a
commercial  bank.  The  loan is  unsecured  and  bears  interest  at the  London
Interbank  Offering  Rate  ("LIBOR")  plus  0.60%  to  1.20%  depending  on  the
Partnership's  interest  coverage ratio (6.017% at September 30, 1998). The loan
requires monthly  payments of interest and mature September 2002.  Principal may
be paid, in whole or in part, at any time without  penalty or premium.  The loan
proceeds were used to pay off the Partnership's note to Public Storage, Inc.

                                       9



     The  Partnership has entered into an interest rate swap agreement to reduce
the impact of changes in interest  rates on a portion of its floating rate debt.
The  agreement,  which  covers  $11,500,000  of  debt  through  March  2000  and
$4,000,000  from March 2000  through  September  2000,  effectively  changes the
interest rate exposure from floating rate to a fixed rate of 5.22% plus 0.60% to
1.20% based on the Partnership's  interest coverage ratio (5.82% as of September
30,  1998).  Market  gains and losses on the value of the swap are  deferred and
included in income over the life of the contract.  The  Partnership  records the
differences  paid or received on the interest  rate swap in interest  expense as
payments are made or received.  As of September 30, 1998, the unrealized loss on
the interest rate swap, if required to be liquidated, was approximately $90,000.

IMPACT OF THE YEAR 2000 ISSUE
- -----------------------------

     Public Storage, Inc. ("PSI"), the general partner and property manager, has
completed an  assessment  of all of its hardware  and software  applications  to
identify  susceptibility  to what is  commonly  referred  to as the "Y2K  Issue"
whereby certain computer programs have been written using two digits rather than
four to define the applicable  year. Any of PSI's computer  programs or hardware
with the Y2K Issue that have  date-sensitive  applications or embedded chips may
recognize  a date  using  "00" as the year  1900  rather  than  the  year  2000,
resulting  in   miscalculations   or  system  failure  causing   disruptions  of
operations.

     Many of PSI's critical  applications,  relative to the direct management of
properties,  have  recently been replaced and PSI believes they are already Year
2000 compliant.  PSI has an implementation in process on the remaining  critical
applications,  including  its  general  ledger  and  related  systems,  that are
believed to have Y2K Issues.  PSI expects the  implementation  to be complete by
June  1999.  Contingency  plans  have  been  developed  for  use in  case  PSI's
implementations  are not  completed  on a  timely  basis.  While  PSI  presently
believes  that the impact of the Y2K Issue on its systems can be  mitigated,  if
the plan for ensuring Year 2000  compliance  and the related  contingency  plans
were  to  fail,  be  insufficient,  or not be  implemented  on a  timely  basis,
operations of the Partnership could be materially impacted.

     Certain of PSI's other non-computer related systems that may be impacted by
the Y2K Issue, such as security systems, are currently being evaluated,  and PSI
expects  the   evaluation  to  be  completed  by  June  1999.  PSI  expects  the
implementation  of any required  solutions to be complete in advance of December
31, 1999. PSI has not fully evaluated the impact of lack of Year 2000 compliance
on these  systems,  but has no reason to believe that lack of  compliance  would
materially impact the operations of the Partnership.

     The Partnership  exchanges  electronic data with certain outside vendors in
the banking and payroll  processing areas. PSI has been advised by these vendors
that their systems are or will be Year 2000 compliant,  but has requested a Year
2000 compliance certification from these entities. PSI is not aware of any other
vendors,  suppliers,  or other  external  agents  with a Y2K  Issue  that  would
materially impact the Partnership's results of operations, liquidity, or capital
resources.  However,  PSI has no means of ensuring that external  agents will be
Year 2000  compliant, and  there  can be no  assurance  that the Partnership has

                                       10



identified  all such  external  agents.  The  inability  of  external  agents to
complete their Year 2000 compliance process in a timely fashion could materially
impact the Partnership.  The effect of  non-compliance by external agents is not
determinable.

     The total cost of PSI's Year 2000 compliance  activities  (which  primarily
consists of the costs of new systems) will be allocated to all entities that use
the PSI  computer  systems.  The amount to be allocated  to the  Partnership  is
estimated at approximately $64,000. These costs are capitalized.

     The costs of the projects  and the date on which PSI believes  that it will
be Year 2000  compliant are based upon  management's  best  estimates,  and were
derived utilizing numerous assumptions of future events. There can be no
assurance that these estimates will be achieved, and actual results could differ
materially  from  those  anticipated.  There  can be no  assurance  that PSI has
identified  all potential Y2K Issue either within PSI and the  Partnership or at
external  agents.  In  addition,  the  impact of the Y2K  Issue on  governmental
entities and utility  providers and the resultant impact on the Partnership,  as
well as  disruptions  in the  general  economy,  may be  material  but cannot be
reasonably determined or quantified.

                                       11



                           PART II. OTHER INFORMATION


Items 1 through 5 are inapplicable.

Item 6 Exhibits and Reports on Form 8-K.
       ---------------------------------

        (a)   The following exhibits are included herein:

                   10.1   Credit  Agreement  dated  September  1,  1998  by  and
                          between Public  Storage  Properties IV, Ltd. and Wells
                          Fargo Bank, National Association

                   10.2   Interest Rate Swap Agreement  dated September 18, 1998
                          by and between Public Storage  Properties IV, Ltd. and
                          Wells Fargo Bank, National Association

                   (27)   Financial Data Schedule

        (b)  Form 8-K

                   None   



                                   SIGNATURES

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned thereunto duly authorized.



                                        DATED: November 13, 1998

                                        PUBLIC STORAGE PROPERTIES IV, LTD.

                                        BY:  Public Storage, Inc.
                                             General Partner


                                        BY:  /s/ John Reyes
                                             -------------------------
                                             John Reyes
                                             Senior Vice President and
                                               Chief Financial Officer

                                       12