Auction Catalogue
Schweiserische Nationalbank, specimen 20 Franken, 11 April 1935, series 7O, red SPECIMEN overprint, star perforations, on card mount, uncirculated and scarce
TBB B324es, Pick 39es £440-£480
Schweiserische Nationalbank, specimen 20 Franken, 11 April 1935, series 7O, red SPECIMEN overprint, star perforations, on card mount, uncirculated and scarce
TBB B324es, Pick 39es £440-£480
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