EXHIBIT 10.1





                                 $500,000.00 US


                           REVOLVING CREDIT AGREEMENT

                                     Between

                                  VOLKER MONTAG

                                       and

                             FINCA CONSULTING, INC.





                             Dated December 12, 1997



                           REVOLVING CREDIT AGREEMENT

           THIS AGREEMENT is made as of December 12, 1997, by and between Volker
Montag (the "Borrower"), and Finca Consulting, Inc., a Colorado
corporation (the "Lender.").

                              B A C K G R O U N D :

           WHEREAS,  the  Borrower is an officer and  director of the Lender and
both parties desire to document  Borrower's  outstanding  loans from the Lender,
and,  establish a certain  credit  limit to provide for the  repayment  of these
borrowings to the lender, and;

           WHEREAS, the Borrower and Lender desire to set forth in this document
all of the terms and conditions that shall govern their credit relationship.

           NOW,  THEREFORE,  in consideration of the mutual promises made by the
parties to each other, it is agreed as follows:

SECTION 1.  AMOUNT AND TERMS OF LOAN COMMITMENT AND LOANS

     1.1 The Loan  Commitment.  Subject  to the  terms  and  conditions  of this
Agreement,  the Lender agrees to make revolving  credit loans  (individually,  a
"Loan"; collectively,  the "Loans") to the Borrower from time to time during the
period  (the  "Loan  Commitment  Period",  commencing  upon the date  hereof and
terminating  on the  second  anniversary  date  (the  "Termination  Date") in an
aggregate principal amount at any one time outstanding not to exceed $500,000.00
(the "Loan Commitment").  Lender and Borrower hereby acknowledge that Lender has
previously loaned to Borrower certain sums whose aggregate  outstanding  balance
is $330,859.00 as of the date hereof; the parties agree that his amount shall be
deemed a "Loan" for all purposes under this Agreement and currently  outstanding
under the Loan Commitment.

     1.2 The  Note.  The  Loans  made by the  Lender  shall  be  evidenced  by a
promissory  note of the  Borrower  in the form of  Exhibit  A, with  appropriate
insertions,  which  shall be  payable  to the  order  of the  Lender  and  shall
represent  the  obligation  of the Borrower to pay the amount of the Loan or, if
less,  the aggregate  unpaid  principal  amount of all Loans made by the Lender,
with interest  thereon as prescribed in Section 1.5. The Note shall (a) be dated
the date hereof,  (b) be stated to mature on the  Termination  Date and (c) bear
interest  for the period from the date  hereof  until paid in full on the unpaid
principal  amount thereof from time to time  outstanding at the rates prescribed
in Section 1.5.

     1.3 Procedure for Borrowing Under Loan Commitment.  The Borrower may borrow
under the Loan Commitment at any time during the Loan Commitment Period.

     1.4 Optional  Prepayment  The Borrower may, at his option,  prepay the Note
without premium or penalty, in whole or in part.

     1.5 Interest  Rates.  (a) The Loans shall bear interest  (calculated on the
basis of a 360-day  year for the actual  number of days  elapsed)  on the unpaid
principal amount thereof at a rate per annum equal to 5% payable annually.

     (b) If all or a portion of the  principal  amount of any of the Loans shall
not be paid  when due  (whether  at the  stated  maturity,  by  acceleration  or
otherwise),  such overdue principal amount shall bear interest at the rate of 5%
per annum, to the extent permitted by law.

     1.6      Maturity of Loans. The outstanding principal amount of the Loans
shall be due and payable on the Termination Date.

     1.7 Previous  Advances.  The Lender and the Borrower  acknowledge  that the
amount of  $330,859.00  US has been  previously  advanced  by the  Lender to the
Borrower and represents the aggregate  outstanding  principal  balance due as of
the date hereof. Provided that the Borrower has made all payments required to be
paid hereunder and is not in default,  the Lender may, upon Borrower's  request,
lend additional sums up to the Loan Commitment amount of $500,000.00 US.

SECTION 2. COVENANTS

     2.1 Payment of Note.  The Borrower shall pay the principal of, and interest
on, the Note on the dates and in the manner provided herein and in the Note.

     2.2 Personal Financial  Statements.  The Borrower covenants and agrees that
so long as the Loan  Commitment  shall be in  effect  or any sum  under the Note
shall be  outstanding,  the  Borrower  will  deliver to the  Lender,  as soon as
available,  but not later than 120 days after the close of each  calendar  year,
the personal financial statement of the Borrower, as at the end of such calendar
year.

     2.3 Notice of Default.  If any one or more events occur which  constitute a
Default or an Event of Default,  upon obtaining knowledge thereof,  the Borrower
will  forthwith  give notice to the Lender,  specifying the nature and status of
the Default or Event of Default.


     2.4 Covenant of the Borrower.  The Borrower  covenants and agrees that from
and after the date hereof he shall pay the Loan according to its terms.


SECTION 3. REPRESENTATIONS AND WARRANTIES

     In order to induce the Lender to enter into this  Agreement and to make the
Loans hereunder, the Borrower hereby represents and warrants as follows:

     3.1. No Conflict.  Neither the execution and delivery of this Agreement nor
the  performance by the Borrower of the  transactions  contemplated  hereby will
violate or  conflict  with any  agreement  to which the  Borrower  is a party or
result in the  acceleration  of, or entitle any party to accelerate the maturity
or the cancellation of the performance of any obligation under, or result in the
creation  or  imposition  of any Lien in or upon the assets of the  Borrower  or
constitute a default (or an event which  might,  with the passage of time.or the
giving of notice, or both, constitute a default) under any contract; to the best
of  Borrower's  knowledge,  any  order,  judgment,  regulation  or ruling of any
Governmental or Regulatory Body to which the Borrower is a party or by which any
of his property or assets may be bound or affected or to the best of  Borrower's
knowledge, with any provision of any law, rule, regulation,  order, judgment, or
ruling of any Governmental or Regulatory Body applicable to the Borrower.

     3.2 Litigation.  There are no outstanding orders,  judgments,  injunctions,
investigations,  awards or-decrees of any court, Governmental or Regulatory Body
or arbitration  tribunal by which the Borrower or any of his assets,  properties
or business is bound. There are no actions, suits, claims, legal, administrative
or  arbitration  proceedings  pending or, to the best knowledge of the Borrower,
overtly threatened (whether or not the defense thereof or liabilities in respect
thereof are covered by  insurance)  against or affecting  the Borrower or any of
his assets or properties,  that,  individually  or in the aggregate,  could,  if
determined adversely to the Borrower have a Material Adverse Effect, nor, to the
best  knowledge  of the  Borrower,  are there any facts which are likely to give
rise to any such action, suit, claim, investigation or legal,  administrative or
arbitration proceeding.

SECTION 4. CONDITIONS TO SUBSEQUENT ADVANCES

     The  obligation  of the Lender to permit  Borrower's  previous  loans to be
included in the Loan Commitment and to make any subsequent  advance  pursuant to
this  Agreement  shall  be  subject  to  compliance  by the  Borrower  with  his
agreements  herein  contained,  and, shall be subject to Borrower  executing and
delivering to Lender the Note in the form annexed hereto as Exhibit A.

SECTION 5.  CONDITIONS  TO ALL LOANS.  The  obligation of the Lender to make any
Loan to the Borrower and to permit  previous  borrowings to be  accumulated  and
added to the Loan  Commitment  under this Agreement is subject to fulfillment of
the following conditions precedent to the satisfaction of the Lender:

     5.1 Representations and Warranties. The representations and warranties made
by the Borrower in this Agreement and in any certificate,  document or financial
or other statement  furnished at any time hereunder shall be true and correct in
all material respects unless stated to relate to a specific earlier date.


     5.2 No Default or Event of  Default.  No Default or Event of Default  shall
have occurred under this Agreement or under the terms of the Note.

SECTION 6. DEFAULTS AND REMEDIES

     6.1 Events of Default. Event of Default,  whenever used herein means any of
the following events:

            (a)  the  Borrower  defaults  in the  due and  punctual  payment  of
principal  of,  interest  on, or any other  amount owing in respect of, the Note
when and as the same  shall  become due and  payable,  and  continuance  of such
default for a period of 5 Business Days after receipt of notice; or

            (b) the Borrower  defaults in the  performance  or observance of any
covenant or  agreement  of the  Borrower in this  Agreement  or the Note and the
continuance  of such  default for a period of 30  calendar  days after there has
been  given to the  Borrower  by the  Lender a written  notice  specifying  such
default and requiring it to be remedied; or

       (c) the  Borrower  shall (i)  default in any payment of  principal  of or
interest on any Loan or (ii) default in the  observance  or  performance  of any
agreement or condition  relating to any such Loan or any other event shall occur
or condition  exist,  the effect of which default or other event or condition is
to cause (immediately or with the giving of notice or lapse of time or both) any
such Loan to become due prior to its stated maturity; or

            (d) the  Borrower,  either  pursuant to or within the meaning of any
applicable  bankruptcy or insolvency  law: (i) commences a voluntary  case, (ii)
consents to the entry of an order for relief against it in an involuntary  case,
(iii)  consents  to  the  appointment  of a  Custodian  of  it  or  for  all  or
substantially  all of its property,  or (iv) makes a general  assignment for the
benefit of its creditors; or

     (e) a court of competent  jurisdiction  enters an order or decree under any
applicable  bankruptcy or  insolvency  law that:  (i) is for relief  against the
Borrower in an involuntary  case,  (ii) appoints a custodian of the Borrower for
any  substantial  part of all the property of the Borrower,  or (iii) orders the
liquidation  of the Borrower;  and the order or decree  remains  unstayed and in
effect for 60 days.

     The term  Custodian  means  any  receiver,  trustee,  assignee,  custodian,
liquidator or similar  official  under any  applicable  bankruptcy or insolvency
law.

     6.2  Acceleration  of  Maturity.  If an  Event  of  Default  occurs  and is
continuing, then and in every such case the Lender may, declare the principal of
the  Note to be due  and  payable  immediately  and the  Loan  Commitment  to be
terminated,  by a  notice  in  writing  to  the  Borrower,  and  upon  any  such
declaration  the principal of the Note shall become  immediately due and payable
and the Loan Commitment shall be terminated.


SECTION 7. MISCELLANEOUS

     7.1 Amendments and Waiver. This Agreement and the Note may be amended,  and
the terms  hereof  waived,  only by a written  instrument  signed by the parties
hereto or, in the case of a waiver, by the party waiving compliance.

     7.2  Notices.  Any notice,  demand or delivery  pursuant to the  provisions
hereof shall be  sufficiently  given or made if sent by hand or by registered or
certified mail,  postage prepaid,  addressed to the Lender at Finca  Consulting,
Inc., Koenigsalle 106, 40215 Dusseldorf, Germany, Attention: Roland Schoeneberg,
Vice  President  or,  except as  otherwise  expressly  provided  herein,  to the
Borrower  at Am  Abelshof  12,  D-47445  Moers-Repelen,  Germany,  or such other
address as shall have been  furnished to the party giving or making such notice,
demand or  delivery.  Any such notice  shall be deemed  given when so  delivered
personally  or, by telecopy,  or if mailed,  five (5) days following the deposit
with a reputable overnight courier.

     7.3 Governing  Law. This  Agreement  shall be governed by, and construed in
accordance  with,  the  laws  of the  State  of New  Jersey  without  regard  to
principles of conflicts of law.

     7.4 No Waiver;  Cumulative Remedies. No failure to exercise and no delay in
exercising,  on the part of the Lender,  any right,  remedy,  power or privilege
hereunder,  shall operate as a waiver  thereof;  nor shall any single or partial
exercise of any right,  remedy,  power or privilege hereunder preclude any other
or further exercise thereof or the exercise of any other right, remedy, power or
privilege.  The rights,  remedies,  powers and  privileges  herein  provided are
cumulative  and not  exclusive of any rights,  remedies,  powers and  privileges
provided by law.

     7.5  Successors   and  Assigns.   This  Agreement  and  each  document  and
certificate  delivered  pursuant  thereto shall be binding upon and inure to the
benefit  of the  Borrower  and the Lender and their  respective  successors  and
permitted assigns, except that neither the Borrower nor the Lender may assign or
transfer  any of its rights  under this  Agreement or the Note without the prior
written consent of the other.

     7.6  Counterparts.  This  Agreement  may be  executed by one or more of the
parties to this Agreement in any number of separate counterparts and all of said
counterparts  taken  together  shall be  deemed to  constitute  one and the same
instrument.  A set of the  copies of this  Agreement  signed by all the  parties
shall be lodged with the Borrower and the Lender.

     7.7  Severability.  Any  provision  of this  Agreement or the Note which is
prohibited,  invalid or  unenforceable  in any  jurisdiction  shall,  as to such
jurisdiction,  be ineffective to the,extent of such  prohibition,  invalidity or
unenforceability  without  invalidating the remaining provisions hereof, and any
such prohibition,  invalidity or  unenforceability in any jurisdiction shall not
invalidate or render  unenforceable  such provision in any other jurisdiction or
any other provision of this Agreement or the Note.

     7.8  Investment.  The Lender is acquiring  the Note for its own account and
not with a view to resale.


     7.9 Entire  Agreement.  This Agreement,  including Exhibit A annexed hereto
and incororated herein by reference, and the agreements,  certificates and other
documents  delivered  pursuant to this  Agreement  contain the entire  agreement
among the  parties  with  respect  to the  transactions  described  herein,  and
supersede all prior agreements, written or oral, with respect thereto.

     7.10  Indemnification.  The Borrower  agrees to indemnify,  defend and hold
harmless  the  Lender  and its  respective  shareholders,  officers,  directors,
employees, and any Affiliates of the foregoing, and their successors and assigns
(collectively,   the  Lender  Group)  from  and  against  any  and  all  losses,
liabilities  (including punitive or exemplary damages and fines or penalties and
any interest thereon),  expenses (including reasonable fees and disbursements of
counsel and  expenses of  investigation  and  defense),  claims,  Liens or other
obligations of any nature  whatsoever  (hereinafter  individually,  a "Loss" and
collectively, "Losses") which, directly or indirectly, arise out of, result form
or relate  to, (i) any  inaccuracy  in or any  breach of any  representation  or
warranty  of the  Borrower  contained  in  Section 4, and (ii) any breach of any
covenant of the Borrower  contained in this  Agreement or in any other  document
contemplated by this Agreement.

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
duly executed and delivered by their proper and duly  authorized  officers as of
the day and year first above written.

                                        LENDER:

                                        FINCA CONSULTING, INC.

                                        By: /s/Roland Schoeneberg
                                            ---------------------
                                            Roland Schoeneberg, Vice President



                                        BORROWER:


                                          /s/Volker Montag
                                          ------------------   
                                             Volker Montag

                                    EXHIBIT A
                                 PROMISSORY NOTE

$500,000.00 US                                               December 12, 1997
                                                             Dusseldorf, Germany

     FOR VALUE  RECEIVED,  the  undersigned,  Volker Montag,  an individual (the
"Borrower"),  hereby  unconditionally  promises  to pay to the  order  of  Finca
Consulting,  Inc., a Colorado  corporation  (the "Lender"),  at Koenigsalle 106,
40215 Dusseldorf,  Germany,  Attention:  Roland Schoeneberg,  Vice President, in
Dollars, US, the lawful money of the United States of America and in immediately
available  funds,  the principal  amount of the lesser of (i) $500,000.00 US and
(ii) the aggregate  unpaid  principal  amount of all Loans made by the Lender to
the  undersigned  and  accrued  interest,  if  any,  on  or  before  the  second
anniversary  date  hereof as set forth in Section  1.1 of the  Revolving  Credit
Agreement,  dated as of the date hereof,  between the undersigned and the Lender
(the  "Credit  Agreement").  Capitalized  terms used herein  shall have the same
meanings as set forth in the Credit Agreement, unless otherwise defined herein.

     The undersigned further agrees to pay interest in like money at such office
on the unpaid  principal  amount  hereof  from time to time from the date hereof
until such amount shall be paid (whether at the stated maturity, by acceleration
or otherwise) on the dates and at the applicable  rates per annum as provided in
Section 1.5 of the Credit Agreement.

     If any  payment on this Note  becomes due and payable on a day other than a
Business  Day, the  maturity  thereof  shall be extended to the next  succeeding
Business Day, and, with respect to payments of principal, interest thereon shall
be payable at the then applicable rate during such extension.

     This Note is the Note  referred to in the Credit  Agreement and is entitled
to the  benefits  thereof  and is subject to the terms and  conditions  provided
therein.

     Except  as  expressly   provided  herein,  the  undersigned  hereby  waives
presentation, demand, protest and all other notices of any kind.

     This Note shall be governed by, and construed in accordance  with, the laws
of the State of New Jersey without regard to principles of conflicts of law.

                                        LENDER:

                                        FINCA CONSULTING, INC.

                                        By: /s/Roland Schoeneberg
                                            ---------------------
                                            Roland Schoeneberg, Vice President

                                        BORROWER:

                                        /s/Volker Montag
                                        -----------------
                                        Volker Montag

                                 PROMISSORY NOTE

$500,000.00 US                                             December 12, 1997
                                                           Dusseldorf, Germany

     FOR VALUE  RECEIVED,  the  undersigned,  Volker Montag,  an individual (the
"Borrower"),  hereby  unconditionally  promises  to pay to the  order  of  Finca
Consulting,  Inc., a Colorado  corporation  (the "Lender"),  at Koenigsalle 106,
40215 Dusseldorf,  Germany,  Attention:  Roland Schoeneberg,  Vice President, in
Dollars, US, the lawful money of the United States of America and in immediately
available  funds,  the principal  amount of the lesser of (i) $500,000.00 US and
(ii) the aggregate  unpaid  principal  amount of all Loans made by the Lender to
the  undersigned  and  accrued  interest,  if  any,  on  or  before  the  second
anniversary  date  hereof as set forth in Section  1.1 of the  Revolving  Credit
Agreement,  dated as of the date hereof,  between the undersigned and the Lender
(the  "Credit  Agreement").  Capitalized  terms used herein  shall have the same
meanings as set forth in the Credit Agreement, unless otherwise defined herein.

     The undersigned further agrees to pay interest in like money at such office
on the unpaid  principal  amount  hereof  from time to time from the date hereof
until such amount shall be paid (whether at the stated maturity, by acceleration
or otherwise) on the dates and at the applicable  rates per annum as provided in
Section 1.5 of the Credit Agreement.

     If any  payment on this Note  becomes due and payable on a day other than a
Business  Day, the  maturity  thereof  shall be extended to the next  succeeding
Business Day, and, with respect to payments of principal, interest thereon shall
be payable at the then applicable rate during such extension.

     This Note is the Note  referred to in the Credit  Agreement and is entitled
to the  benefits  thereof  and is subject to the terms and  conditions  provided
therein.

     Except  as  expressly   provided  herein,  the  undersigned  hereby  waives
presentation, demand, protest and all other notices of any kind.

     This Note shall be governed by, and construed in accordance  with, the laws
of the State of New Jersey without regard to principles of conflicts of law.

                                        LENDER:

                                        FINCA CONSULTING, INC.

                                        By: /s/Roland Schoeneberg
                                            ---------------------
                                            Roland Schoeneberg, Vice President

                                        BORROWER:

                                        /s/Volker Montag
                                        -----------------
                                        Volker Montag