French 15 Centimes Sower Postage Stamp Appraisals

United States Army and Navy For Defense 2 Cents Postage Stamp

1 Cent 'For Defense' US Postage Stamp, Scott #898

Miscellaneous United States Postage Stamps

German Postage Stamp, 5 Reichspfennig, Featuring Friedrich Schiller

Italian 20 Centesimi Postage Due Stamp (Fleur de Lys design)

King George VI 1½d Postage Stamp

Hungarian 4 Filler Postage Stamp (Holy Crown of Hungary)

1940 10-Cent Mark Twain Commemorative Postage Stamp

Christmas Postage Stamp

Czechoslovakia 1920 Hradcany Surcharge Issue Postage Stamp, 25h on 50h, Lion and Chain Design

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

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

United States 10 Cents John Tyler Postage Stamp

Korean Postage Stamp

Alexander Graham Bell 10-cent US Postage Stamp

USA 'Omnibus 1880s' 1-Cent Postage Stamps (Strip of 3)

Colombian 5 Centavos Postage Stamp (Coffee Farm Scene)

U.S. Postage John Ericsson Memorial 5 Cents Stamp

Cayman Islands 1d Postage Stamp featuring King George VI

Denmark 5 Ore Christian X Postage Stamp

Hungarian Postage Stamp with King Stephen I and Saint Gellért

Chiang Kai-shek Republic of China 200 Yuan Postage Stamp

United States 3 Cents Postage Due Stamp

75th Anniversary of the 13th Amendment Commemorative Postage Stamp

Australian Postage Stamp - Van Duyvenbode

Greek Postage Stamp with King George I

United States John James Audubon 1-cent Postage Stamp

Greek Postage Stamp - 10 Lepta with Caryatid Design

German 40 Pfennig Paul von Hindenburg Postage Stamp

4-Cent Abraham Lincoln Postage Stamp

Hungarian 'Strong Man' definitve postage stamp (1946-1948 issue), 20 Filler denomination

United States 2 Cents Postage Stamp (Statue of Liberty)

General José de San Martín 10 Centavos postage stamp

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

Taiwanese Postage Stamp

British 24p Stamp

Canadian 2 Cents Postage Stamp (George V)

Dutch Postage Stamps

King George V 1 1/2d Postage and Revenue Stamp

5 Cents Walt Whitman United States Postage Stamp