Czechoslovakia 1 Koruna Postage Due Stamp Appraisals

Republic of China Postal Stamp, "Sun Yat-sen with Martyr's Memorial" Series, 1 Fen Denomination

Iowa Territorial Centennial Postage Stamp

Martín Güemes 20c Postage Stamp

2 Cent 1890-93 George Washington Postage Stamp (Series Issue)

Hungarian Postage Stamp

Hungarian Postage Stamp

"Fast Express" 2-Cent United States Postage Stamp

Republic of China Junk Postage Stamp, 4 Cents

Victor Herbert 3-cent US Postage Stamp

Antigua 1876 5 Centavos Postage Stamp with Face of Bolivar

Canadian Postal Stamp

Canadian 50-Cent Postage Stamp

Postage Stamp

Chilean '1536-1936 Decierto de Atacama' 5 Cts Postage Stamp

5 Cent Elias Howe US Postage Stamp (Used)

Samuel F. B. Morse U.S. Postage Stamp, 2 Cents (Red)

Louisa May Alcott 5 Cents United States Postage Stamp

USA 45-cent Pumpkinseed Sunfish postage stamp

Eisenhower Postage Stamp

Collection of Vintage Postage Stamps

Used James Fenimore Cooper 2-Cent United States Postage Stamp

Bulgarian Rabbit Themed Postage Stamp, 10 Stotinki

Austrian 24 Groschen Salzburg Postage Stamp

Vintage 10 Cents Postage Stamp (Building Motif)

Dutch Postage Stamp

2-Cent United States Postage Stamp (Scott #210)

Plymouth 1 Penny Stamp

1940 10-Cent Mark Twain Commemorative Postage Stamp

Alexander Graham Bell 10-cent US Postage Stamp

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

Sverige 1941 'Viking Ship' Postage Stamp

75th Anniversary of the 13th Amendment Commemorative Postage Stamp

Australian Postage Stamp - Van Duyvenbode

United States 2 Cents Postage Stamp (Statue of Liberty)

Argentine Republic 5 Centavos 'Labor' Postage Stamp

29 Cent USA Tulip Postage Stamp

Austrian 10 Heller Postage Stamp (Emperor Franz Joseph I)

Taiwanese Postage Stamp

British 24p Stamp

3 Cents Canal Zone Postage Stamp featuring Goethals