Primer Congreso Postal Panamericano Appraisals

Costa Rican National Exhibition 1937 Postage Stamp

Bulgarian Rabbit Themed Postage Stamp, 10 Stotinki

Used British Penny Red Postage Stamp

Austrian 24 Groschen Salzburg Postage Stamp

Gamecock Country Poster

Canadian 4 Cent Postage Stamp

Vintage Moroccan Postage Stamp, 2 Mills, with Inverted Portrait and Cancelation Mark

Czechoslovakia 1938 Jindřich Fügner 50h Postage Stamp

Daniel Webster US Postage Stamp, 3 Cents

German Empire 'Germania' 24 Pfennig Postage Stamp

Spanish Colonies 5 Centavos Postage Stamp, depicting Christopher Columbus (Colon)

Albania Mirdita Issue Overprint Postage Due Stamp

1939 New York World's Fair 3 Cent Postage Stamp

Collection of Early-to-Mid 20th Century Revenue and Definitive Postage Stamps

Vintage 10 Cents Postage Stamp (Building Motif)

Japanese Propaganda Illustrations

United States 3 Cents Postage Stamp (George Washington)

Netherlands Indies 3 Cent Stamp, Water Buffalo and Paddy Field

U.S. 3-Cent 'Liberty' Postage Stamps (Block of Two)

Czechoslovakia 1 Koruna Postage Due Stamp

Australian 1 Penny King George V Postage Stamp

James Fenimore Cooper 2 Cents US Postage Stamp

1940 10-Cent Mark Twain Commemorative Postage Stamp

Woodrow Wilson $1 United States Postage Stamp

United States Postage Stamps 100th Anniversary Commemorative Card

Chilean Postage Stamp, 'Correos de Chile' with '50' Denomination in Red

Republic of China Postage Stamp featuring Sun Yat-sen (5 centavos)

Bermuda 2½d Postage Stamp (King George VI)

U.S. Postage John Ericsson Memorial 5 Cents Stamp

Bolivia 50 Centavos Postage Stamp (Likely 1901-1904 Issue)

United States 3 Cents Postage Stamp Design

Sverige 1941 'Viking Ship' Postage Stamp

United States 10 Cents John Tyler Postage Stamp

U.S. Postage 3 Cent Horticulture Stamp

Denmark 40 Øre Postage Stamp with Viking Ship Motif

Srodkowa Litwa 25 Fenigów Postage Stamp

Republica Argentina 15 Centavos 'Ganadería' Postage Stamp

United States Capitol Building Postage Stamp

1-cent Gilbert Charles Stuart U.S. Postage Stamp

Collection of Austrian Postage Stamps (Second Republic Era)