Robert Milikan Postage Stamp Appraisals

Costa Rica 10 Centimos Isla del Coco Postage Stamp

Indian Postage Stamp

United States 3 Cents Postage Stamp with George Washington Profile

Australian 2 Pence 'Kangaroo and Map' Postage Stamp (King George V)

King George V Two Pence Halfpenny Postage Stamp

King George V 'Three Halfpence' Postage and Revenue Stamp

Canada 5-cent Wild Flower Stamp

Ralph Waldo Emerson 3 Cents United States Postage Stamp

German Hyperinflation Stamp, 50 Millionen (Million) Mark

Painting by Robert Cox

Tadeusz Kościuszko U.S. Postage Stamp, 5 Cents

King Farouk I of Egypt 10 Mills Postage Stamp

United States Postage Stamps 100th Anniversary Commemorative Card

United States Stamp Collection

Soviet Union Art-Themed Postage Stamps (Mounted)

King George V Great Britain 1½d Postage and Revenue Stamp

Jamaica 1d Postage & Revenue Stamp (Cassava Processing)

Claire Chennault 'Flying Tigers, 1940s' USA 40-cent Postage Stamps

New Zealand 4 Dollar Stamp

Portrait Print of Robert Burns

Ceylon Queen Victoria 6 Pence Postage & Revenue Stamp (Purple)

United States 4 Cents Defense Stamp

Commemorative Stamp

Ecuador 5 Centavos Bicentenario de la Mision La Condamine postage stamp

U.S. Postage Five Cents Kosciuszko 1783-1933 Stamp

1 Cent Benjamin Franklin Inverted Center Stamp

21 cent United States Air Mail Stamp

French Postage Stamp: Le Puy-en-Velay (90c, RF France)

Republic of China First Peking Issue Postage Stamp (1 Cent)

German Postage Stamp Collection in Album

Collection of Australian Postage Stamps

Used 2 Pence Queen Victoria Postage and Revenue Stamp

1930 Charleston, South Carolina 250th Anniversary Stamp

German Inflation Period Stamp - 20 Tausend (Twenty Thousand)

Early Morning Home by Robert W. Addison (Framed Limited Edition Print)

Deutsches Reich 200 Millionen Mark Postage Stamp

German and Bavarian Official Postage Stamps Album Page

Republic of China 2 Cents Postage Stamp (First Peking Issue)

4 Cent Abraham Lincoln US Postage Stamps (Block of Two)

Ceylon 'Tapping Rubber' Postage Stamp (George VI Issue)