USA 1 dollar Incandescent Light Bulb
USA 2.5 dollars 150th Anniversary-Independence
USA 10 dollars Library of Congress
USA 25 cents Lowell National Historical Park
Germany - GDR 5 mark 400th Anniversary - Birth of Johannes Kepler
Germany - GDR 5 mark 125th Anniversary - Birth of Max Planck
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
