Czechoslovakia 1 Koruna Postage Due Stamp Appraisals

James Buchanan 15 Cents United States Postage Stamp

4-Cent Abraham Lincoln Postage Stamp

1940 Coronado Cuarto Centennial 3-Cent US Postage Stamp

General José de San Martín 10 Centavos postage stamp

1934 Mother's Day Three Cents U.S. Postage Stamp (Scott #737)

Vintage Postage Stamp

Four Dollar Purple Stamp

5 Cents Walt Whitman United States Postage Stamp

1926 U.S. Postal Cover with 1-Cent Franklin Stamp

4 Cents William Howard Taft US Postage Stamp

U.S. Postage 3 Cent Horticulture Stamp

Bermuda 2½d Postage Stamp (King George VI)

United States 3 Cents Postage Stamp Design

James Russell Lowell 3 Cents US Postage Stamp

Byrd Antarctic Expedition II 3 Cents U.S. Postage Stamp

Dutch Postage Stamps

United States 5 Cents James Monroe Postage Stamp

Canada 20 Cents Postage Stamp, Fort Chambly Issue

Canadian Postage Stamp

4 Dollar Purple Stamp

United States 2 Cents Postage Stamp (George Washington Silhouette)

USSR 1980 Postage Stamp - Jean Auguste Dominique Ingres (Self-Portrait with Vénus Anadyomène)

US Postage Stamp - Sherman, Grant, Sheridan (3 Cents)

Irish 3d Blue Stamp

German Postage Stamp

Bolivia 5 Cts II Congreso Eucaristico Nacional Airmail Postage Stamp

Danish 70 Øre Stamp

Collection of United States Commemorative Postage Stamps

Thai Postage Stamp

United States 3 Cents Postage Stamp (George Washington)

Canadian 4 Cent Postage Stamp

Collection of German and Danzig Postage Stamps

William Penn 3 Cents Postage Stamp (1932 Issue)

United States 3 Cents Postage Stamp, Robert Louis Stevenson

Canadian Stamp

US Flag Commemorative Stamp

Netherlands Postage Stamp

1939 Golden Gate International Exposition United States Postage Stamp

Thai Postage Stamp

Great Britain Victoria Halfpenny Postage & Revenue Stamp (Green)