A. Karamitsos
Auction 708 10-11 Dec 2022
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SWITZERLAND: Specimen of 10 Franken (ND 1979-86) in multicolor. Leonhard Euler at right on face. S/N: "00A 0000000". Red diagonal ovpt "SPECIMEN" at center on face and back. Number "276" at bottom left on face. Vertical perfin "SPECIMEN" at center-left. WMK: Euler. Printed by OFZ. Inside holder by PCGS "CHOICE UNC 64". (Pick 53s).