Citation: 4C.172/2000 28.03.2001 E. A

A.- a) Die Beverly Overseas SA (Klägerin) wurde am 18. Mai 1993 mit Sitz auf den British Virgin Islands gegründet. Die Privredna Banka Zagreb d.d. (Beklagte) ist das bedeutendste Bankinstitut Kroatiens mit Sitz in Zagreb. b) Hintergrund des Streits bilden Waffengeschäfte aus dem Jahr 1992. Verkäuferin soll eine Intersystems Inc. , Beirut, Käuferin die Republik Kroatien gewesen sein, welche sich damals in kriegerischen Auseinandersetzungen mit serbentreuen Verbänden befand. Die Klägerin klagt als Zessionarin der Intersystems Inc. c) Im Rahmen einer "Promissory Note" gab die Beklagte am 11. Mai 1992 ein Zahlungsversprechen ab, das wie folgt lautete (Originalfassung): "We agree to full responsibility for the wording of the Promissory Note as follows: Datei of issue: May 11, 1992 Date of Maturity: July 7 to December 30, 1992 For value received, we the undersigned appointed officers of Privredna banka Zagreb, d.d. hereby irrevocably and unconditionally without protest or notification promise to pay against this Promissory Note to the order of Bearer. Bearer: INTERSYSTEMS INC. -code Z-1/FG-001 from May 8th, 1992 or holder thereof at maturity and one day from Date of issue on the sum of USD 26,100. 000.-- in lawful money with 8% annual interest rate on the balance. Payments shell be made in six equal monthly instalments in am amount of USD 4,350. 000.-- and the interest shell be paid with the Last instalment. The borrower maintains the right to pay the debt prior to the above mentioned date. The terms and conditions of this Promissory Note will be governed and construed in accordance with the laws of Switzerland and additional thereto by the regulations of the International Chamber of Commerce in Paris and the United States Council of the International Chamber of Commerce Brochure "322" last revised edition. The present revision of the Uniform Rules for Collections, dated 1st January 1979, replaces I.C.C. Publication No. 254. The failure of the holder thereof to exercise and declares that all acts, conditions, and things have happened precedent to the creation and issue of this Note and constitute this Note the valid obligation of the borrower in accordance with its terms have been done and performed. An additional thereto by the regulations of (Forme Majeure) and the International Chamber of Commerce in Paris, Franke, Brochure "400" last revised edition of all rights arising from the ownership of this Promissory Note that is freely transferable, assignable, and divisible. " Unterzeichnet ist das Dokument unter dem Titel "Borrower:" durch Mr. Martin Katicic für die Beklagte sowie durch Jozo Martinovic, M.B.A., für die Republik Kroatien unterhalb des Zusatzes: "We agree and fully accept the commitments arising from this Promissory Note.. " Das Original der "Promissory Note" trägt auf der Rückseite eine Erklärung im Sinne von Art. 1008 OR betreffend Übertragung zum Inkasso an die Klägerin.