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 quarterly period ended March 31, 1995

                                      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:  1-6620


                              GRIFFON CORPORATION
            (Exact name of registrant as specified in its charter)


           DELAWARE                                        11-1893410
(State or other jurisdiction of                        (I.R.S. Employer
incorporation or organization)                         Identification No.)


100 JERICHO QUADRANGLE, JERICHO, NEW YORK                    11753
(Address of principal executive offices)                   (Zip Code)


                                  (516) 938-5544
             (Registrant's telephone number, including area code)


                        INSTRUMENT SYSTEMS CORPORATION
                  (Former name, if changed since last report)


      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, and (2) has been subject to such filing
requirements for the past 90 days.

                                                   X   Yes                 No
                                                ------              ------
      Indicate the number of shares outstanding of each of the issuer's classes
of common stock, as of the latest practicable date.  30,903,383 shares of Common
Stock as of April 28, 1995.


                                    FORM 10-Q

                                    CONTENTS


PART I -  FINANCIAL INFORMATION (Unaudited)

          Condensed Consolidated Balance Sheets at March 31, 1995
          and September 30, 1994

          Condensed Consolidated Statements of Income for the Three
          Months and Six Months Ended March 31, 1995 and 1994

          Condensed Consolidated Statements of Cash Flows for the Six
          Months Ended March 31, 1995 and 1994

          Notes to Condensed Consolidated Financial Statements

          Management's Discussion and Analysis of Financial Condition and
          Results of Operations


PART II - OTHER INFORMATION

          Item 1:  Legal Proceedings

          Item 2:  Changes in Securities

          Item 3:  Defaults upon Senior Securities

          Item 4:  Submission of Matters to a Vote of Security Holders

          Item 5:  Other Information

          Item 6:  Exhibits and Reports on Form 8-K

          Signature

                     GRIFFON CORPORATION AND SUBSIDIARIES

                     CONDENSED CONSOLIDATED BALANCE SHEETS


                                                 March 31,       September 30,
                                                   1995              1994
                                                ------------     -------------
                                                (Unaudited)        (Note 1)
                                                           
ASSETS

   CURRENT ASSETS:

     Cash and cash equivalents                  $ 11,353,000     $ 28,659,000

     Marketable securities                         3,355,000       29,727,000

     Accounts receivable, less allowance
       for doubtful accounts                      54,553,000       59,191,000

     Contract costs and recognized
       income not yet billed                      28,266,000       29,194,000

     Inventories (Note 2)                         76,290,000       68,918,000

     Prepaid expenses and other current
        assets                                     6,924,000        6,987,000
                                                ------------     ------------
        Total current assets                     180,741,000      222,676,000

   PROPERTY, PLANT AND EQUIPMENT
      at cost, less accumulated depreciation
      and amortization of $48,061,000 at
      March 31, 1995 and $44,843,000 at
      September 30, 1994                          50,247,000       49,890,000

   OTHER ASSETS                                   24,035,000       20,649,000
                                                ------------     ------------
                                                $255,023,000     $293,215,000
                                                ============     ============
<FN>
           See notes to condensed consolidated financial statements.
</FN>



                     GRIFFON CORPORATION AND SUBSIDIARIES

                     CONDENSED CONSOLIDATED BALANCE SHEETS


                                                 March 31,       September 30,
                                                   1995              1994
                                                ------------     -------------
                                                (Unaudited)        (Note 1)
                                                           
LIABILITIES AND SHARHOLDERS' EQUITY

   CURRENT LIABILITIES (Note 4):

     Accounts and notes payable                 $ 36,660,000     $ 33,704,000
     Other current liabilities                    43,612,000       67,924,000
                                                ------------     ------------
       Total current liabilities                  80,272,000      101,628,000
                                                ------------     ------------
   LONG-TERM DEBT                                 15,728,000       15,538,000
                                                ------------     ------------
   SHAREHOLDERS' EQUITY (Note 5):
   Preferred stock, par value $.25 per share,
     authorized 3,000,000 shares --
     Second Preferred Stock, Series I,
       authorized 1,950,000 shares, issued
       1,669,882 shares at March 31, 1995
       and 1,677,129 shares at September 30,
       1994 (liquidation value $16,699,000
       and $16,771,000, respectively)                417,000          419,000
   Common Stock, par value $.25 per share,
     authorized 85,000,000 shares, issued
     31,058,158 shares at March 31, 1995
     and 33,887,739 shares at September 30,
     1994, and 154,784 shares and 34,500
     shares in treasury at March 31, 1995
     and September 30, 1994, respectively          7,765,000        8,472,000

   Other shareholders' equity                    150,841,000      167,158,000
                                                ------------     ------------
      Total shareholders' equity                 159,023,000      176,049,000
                                                ------------     ------------
                                                $255,023,000     $293,215,000
                                                ============     ============
<FN>
           See notes to condensed consolidated financial statements.
</FN>


                     GRIFFON CORPORATION AND SUBSIDIARIES

                  CONDENSED CONSOLIDATED STATEMENTS OF INCOME
                                  (Unaudited)


                                                THREE MONTHS ENDED MARCH 31,
                                                -----------------------------
                                                    1995             1994
                                                ------------     ------------
                                                           
Net sales                                       $120,149,000     $105,857,000

Cost of sales                                     88,834,000       74,558,000
                                                ------------     ------------
       Gross profit                               31,315,000       31,299,000

Selling, general and administrative
   expenses                                       25,804,000       22,947,000
                                                ------------     ------------
       Income from operations                      5,511,000        8,352,000
                                                ------------     ------------
Other income (expense):
       Interest expense                             (532,000)        (430,000)
       Interest income                               219,000          394,000
       Other, net                                    221,000           34,000
                                                ------------     ------------
                                                     (92,000)          (2,000)
                                                ------------     ------------
       Income before income taxes                  5,419,000        8,350,000
                                                ------------     ------------
Provision for income taxes:
   Federal                                         1,743,000        2,808,000
   State and other                                   425,000          616,000
                                                ------------     ------------
                                                   2,168,000        3,424,000
                                                ------------     ------------
     Net income                                 $  3,251,000     $  4,926,000
                                                ============     ============
Net income per share of common stock (Note 3)   $        .10     $        .13
                                                ============     ============
<FN>
           See notes to condensed consolidated financial statements.
</FN>


                     GRIFFON CORPORATION AND SUBSIDIARIES

                  CONDENSED CONSOLIDATED STATEMENTS OF INCOME
                                  (Unaudited)


                                                  SIX MONTHS ENDED MARCH 31,
                                                -----------------------------
                                                    1995             1994
                                                ------------     ------------
                                                           
Net sales                                       $253,711,000     $222,012,000

Cost of sales                                    184,050,000      156,346,000
                                                ------------     ------------
       Gross profit                               69,661,000       65,666,000

Selling, general and administrative
   expenses                                       51,415,000       45,864,000
                                                ------------     ------------
       Income from operations                     18,246,000       19,802,000
                                                ------------     ------------
Other income (expense):
       Interest expense                           (1,047,000)        (891,000)
       Interest income                               838,000          846,000
       Other, net                                    252,000          126,000
                                                ------------     ------------
                                                      43,000           81,000
                                                ------------     ------------
       Income before income taxes                 18,289,000       19,883,000
                                                ------------     ------------
Provision for income taxes:
   Federal                                         5,993,000        6,700,000
   State and other                                 1,323,000        1,452,000
                                                ------------     ------------
                                                   7,316,000        8,152,000
                                                ------------     ------------
        Net income                              $ 10,973,000     $ 11,731,000
                                                ============     ============
Net income per share of common stock (Note 3)   $        .32     $        .31
                                                ============     ============
<FN>
           See notes to condensed consolidated financial statements.
</FN>


                           GRIFFON CORPORATION AND SUBSIDIARIES

                      CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                        (Unaudited)


                                                              SIX MONTHS ENDED MARCH 31,
                                                             ---------------------------
                                                                 1995            1994
                                                             -----------    ------------
                                                                      
CASH FLOWS FROM OPERATING ACTIVITIES:

Net income                                                   $10,973,000    $11,731,000
                                                             -----------    -----------
   Adjustments to reconcile net income to net cash
     provided by operating activities:
     Depreciation and amortization                             4,139,000      4,730,000
     Provision for losses on accounts receivable                 406,000        379,000
     Change in assets and liabilities:
       Decrease in accounts receivable and contract
         costs and recognized income not yet billed            8,657,000      8,696,000
       Increase in inventories                                (3,898,000)    (2,995,000)
       (Increase) decrease in prepaid expenses and other
         assets                                                  456,000       (434,000)
       Decrease in accounts payable and accrued liabilities  (24,126,000)   (14,542,000)
     Other changes, net                                          263,000        (23,000)
                                                             -----------    -----------
   Total adjustments                                         (14,103,000)    (4,189,000)
                                                             -----------    -----------
                Net cash provided by (used in) operating
                  activities                                  (3,130,000)     7,542,000
                                                             -----------    -----------
CASH FLOWS FROM INVESTING ACTIVITIES:

   Net (increase) decrease in marketable securities           26,372,000    (14,975,000)
   Acquisition of property, plant and equipment               (4,250,000)    (2,337,000)
   Proceeds from sale of stock of affiliate                      ---         11,615,000
   Acquired businesses                                        (7,758,000)    (1,557,000)
   Decrease in equipment lease deposits and other                439,000      1,665,000
                                                             -----------    -----------
                Net cash provided by (used in) investing
                  activities                                  14,803,000     (5,589,000)
                                                             -----------    -----------


                           GRIFFON CORPORATION AND SUBSIDIARIES

                CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)
                                        (Unaudited)


                                                              SIX MONTHS ENDED MARCH 31,
                                                             ---------------------------
                                                                 1995            1994
                                                             -----------    ------------
                                                                      

CASH FLOWS FROM FINANCING ACTIVITIES:

   Purchase of common shares                                 (28,166,000)    (6,037,000)
   Proceeds from issuance of long-term debt                      ---          1,900,000
   Payment of long-term debt                                  (9,264,000)    (5,716,000)
   Increase in short-term borrowings                           8,500,000        ---
   Other, net                                                    (49,000)       266,000
                                                             -----------    -----------
                Net cash used in financing activities        (28,979,000)    (9,587,000)
                                                             -----------    -----------
NET DECREASE IN CASH AND CASH EQUIVALENTS                    (17,306,000)    (7,634,000)

CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD              28,659,000     26,466,000
                                                             -----------    -----------
CASH AND CASH EQUIVALENTS AT END OF PERIOD                   $11,353,000    $18,832,000
                                                             ===========    ===========
<FN>
                 See notes to condensed consolidated financial statements.
</FN>


                     GRIFFON CORPORATION AND SUBSIDIARIES

             NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                  (Unaudited)


(1)  Basis of Presentation -

      The accompanying unaudited condensed consolidated financial statements
have been prepared in accordance with generally accepted accounting principles
for interim financial information and with the instructions to Form 10-Q and
Article 10 of Regulation S-X.  Accordingly, they do not include all of the
information and footnotes required by generally accepted accounting principles
for complete financial statements.  The balance sheet at September 30, 1994 has
been derived from the audited financial statements at that date.  In the opinion
of management, all adjustments (consisting of normal recurring adjustments)
considered necessary for a fair presentation have been included.  Operating
results for the three-month and six-month periods ended March 31, 1995 are not
necessarily indicative of the results that may be expected for the year ended
September 30, 1995.  For further information, refer to the consolidated
financial statements and footnotes thereto included in the Company's annual
report to shareholders for the year ended September 30, 1994.  The Company
adopted Statement of Financial Accounting Standards No. 115, "Accounting for
Certain Investments in Debt and Equity Securities," for the year beginning
October 1, 1994.  Adoption of this standard did not have a material effect on
the Company's financial position or results of operations.

      At the February 8, 1995 Annual Meeting of Stockholders, the stockholders
approved changing the Company's name from "Instrument Systems Corporation" to
"Griffon Corporation."  The name change became effective in March 1995.

(2)  Inventories -

      Inventories, stated at the lower of cost (first-in, first-out or average)
or market, are comprised of the following:


                                            March 31,      September 30,
                                              1995             1994
                                           -----------     -------------
                                                     
      Finished goods . . . . . . . . . .   $19,690,000      $16,664,000

      Work in process  . . . . . . . . .    30,261,000       26,674,000

      Raw materials and supplies . . . .    26,339,000       25,580,000
                                           -----------      -----------
                                           $76,290,000      $68,918,000
                                           ===========      ===========


(3)  Net Income Per Share -

      Net income per share is calculated using the weighted average number of
shares of common stock, and where dilutive, common stock equivalents outstanding
during each period.  Shares used in computing per share results were 33,111,000
and 37,481,000 for the three months ended March 31, 1995 and 1994 and 34,203,000
and 37,704,000 for the six months ended March 31, 1995 and 1994, respectively.

(4)  Notes Payable -

      In December 1994, outstanding borrowings under a long-term debt agreement
were refinanced under a short-term line of credit.  Interest on this obligation
is at approximately the prime rate.

(5)  Self-Tender Offer -

      In December 1994, the Company completed a self-tender offer for 3,002,840
shares of the Company's Common Stock, which were then retired, at a price of
$8.75 per share.  During the six months ended March 31, 1995, approximately
$28,200,000 was used to acquire 3,120,040 shares of Common Stock.

(6)   Acquisitions -

      During the quarter ended December 31, 1994, the Company acquired two
companies for the building products business for an aggregate price of
$7,758,000.  The acquisitions have been accounted for as purchases.

          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION

                           AND RESULTS OF OPERATIONS


RESULTS OF OPERATIONS

Three months ended March 31, 1995

      Net sales -

      Net sales were $120.1 million for the three-month period ended March 31,
1995, an increase of $14.3 million or 13.5% over last year's comparable quarter.

      Net sales of the building products business were $58.7 million, an
increase of $16.0 million or 37.3% over last year.  Acquired businesses
accounted for $9.5 million of the higher sales; the remainder of the increase
was principally due to increased unit sales of garage doors ($5.6 million) and
increased prices.

      Net sales of the specialty plastic films business were $27.6 million
compared to $29.7 million last year.  As previously reported, a major customer
of the specialty plastic films business has made a design change which
substantially phased out the specialty plastic's thin laminate program during
the first half of 1995.  During the quarter, decreased sales of thin laminate
($6.2 million) were partially offset by the effect of higher selling prices
($2.7 million) and increased unit sales of other film products ($1.0 million).

      Net sales of the electronic information and communication systems business
were $23.3 million compared to $23.8 million last year.

      Operating income -

      Income from operations for the three-month period ended March 31, 1995 was
$5.5 million compared to $8.4 million in last year's comparable quarter.

      Operating income of the building products business, in what is
historically its weakest quarter, increased by approximately $1.0 million
compared to last year.  The effect of higher sales was partially offset by
higher general and administrative expenses due to the business growth.

      Operating income of the specialty plastic films business decreased by
approximately $3.5 million compared to last year primarily due to the phase-out
of the thin laminate program, delays in receipt of anticipated orders related to
ongoing development projects and substantial cost increases for polyethylene
resin used in its business.  The Company has generally been able to pass on such
increases to its customers in the past.  Although the Company has implemented
selling price increases, due to the magnitude of the cost increases, such
selling price adjustments have not fully compensated for the cost increases.  It
is not known at this time if there will be further cost increases or if prices
have stabilized.

      Operating income of the electronic information and communication systems
business decreased approximately $.5 million principally due to the lower sales.

Six months ended March 31, 1995

      Net sales -

      Net sales were $253.7 million in the six-month period ended March 31,
1995, an increase of $31.7 million or 14.3% over last year's comparable period.

      Net sales of the building products business were $138.6 million, an
increase of $34.8 million or 33.5% over last year.  Acquired companies accounted
for $16.8 million of the increase, with the remainder of the increase
principally attributable to increased unit sales of garage doors and price
increases.

      Net sales of the specialty plastic films business were $54.2 million
compared to $56.6 million last year, due primarily to the phase-out of the thin
laminate program partially offset by the effect of higher selling prices ($3.9
million) and increased unit sales of health care and other film products ($3.7
million).

      Net sales of the electronic information and communication systems business
were $40.8 million compared to $43.0 million last year, principally due to
decreased revenues on certain military programs that are nearing completion.

      Operating income -

      Income from operations for the six-month period ended March 31, 1995 was
$18.2 million compared to $19.8 million last year.

      Operating income of the building products business increased approximately
$3.8 million over last year's comparable period primarily due to the increased
sales.

      Operating income of the specialty plastic films business and the
electronic information and communication systems business decreased
approximately $4.7 million and $.9 million, respectively, for the reasons
discussed above.

LIQUIDITY AND CAPITAL RESOURCES

      Cash flow used in operations was $3.1 million, reflecting a reduction of
current liabilities of approximately $24.1 million.

      In December 1994, the Company completed a self-tender offer for 3,002,840
shares of its Common Stock at a price of $8.75 per share.  During the six
months, a total of $28.2 million was used to acquire 3,120,040 shares of Common
Stock. These purchases were funded by existing cash and marketable securities,
which decreased due to the stock purchases and $7.8 million used for two
acquisitions for the building products business.

      Anticipated cash flows from operations, together with existing cash and
lease line availability, should be adequate to finance presently anticipated
working capital and capital expenditure requirements.

                     GRIFFON CORPORATION AND SUBSIDIARIES

                          PART II - OTHER INFORMATION


Item 1      Legal Proceedings

            There are no material changes in the information previously reported
            under this item.

Item 2      Changes in Securities

            None

Item 3      Defaults upon Senior Securities

            None

Item 4      Submission of Matters to a Vote of Security Holders

            None

Item 5      Other Information

            None

Item 6      Exhibits and Reports on Form 8-K

            27 -- Financial Data Schedule (for electronic submission only)







                                   SIGNATURE



      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.


                                          GRIFFON CORPORATION



                                          By Robert Balemian
                                             --------------------------
                                             Robert Balemian
                                             President
                                             (Principal Financial Officer)




Date:  May 3, 1995