USA 1 dollar Annie Jump Cannon
USA 1 dollar Gerber Variable Scale
USA 25 cents Wyoming State
USA 25 cents Washington State
China - Republic 2 cents
Germany 2 mark Konrad Adenauer. 20th Anniversary - Federal Republic (1949 - 1969)
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
