Australia 1 dollar
USA 1 dollar First Patent
USA 3 cents Three cent Nickel
USA 25 cents North Dakota
Germany 5 mark 200th Anniversary - Birth of Carl Friedrich Gauss
1-2P Immune Columbia F.S. Edwards Copy
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
Slovenia
United States
Vatican City
