Canada 50 cents
USA 25 cents Lowell National Historical Park
Spain 2 pesetas
China - Republic 20 cents
China 5 jiao
Germany 10 mark 150th Anniversary - Birth of Wilhelm Conrad Röntgen
Andorra
Australia
Austria
Belgium
Canada
China
Cyprus
Germany
Spain
Estonia
Finland
France
United Kingdom
Greece
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Japan
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Latvia
Monaco
Malta
Netherlands
Portugal
San Marino
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