USA 25 cents Colorado State
USA 25 cents El Yunque
USA 25 cents Saratoga
France 50 francs Hercules group
Spain 100 pesetas
Germany - GDR 10 mark 375th Anniversary - Birth of Otto von Guericke
Andorra
Australia
Austria
Belgium
Canada
China
Cyprus
Germany
Spain
Estonia
Finland
France
United Kingdom
Greece
Croatia
Ireland
Italy
Japan
Lithuania
Luxembourg
Latvia
Monaco
Malta
Netherlands
Portugal
San Marino
Slovakia
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