50 Cent Stamp Appraisals

George C. Marshall Commemorative Stamp

Afrique Équatoriale Française 2 Centimes Postage Stamp

Morocco Agencies 15 Centimes George VI and Elizabeth Coronation Stamp

Australia 2 1/2d Centenary of Mitchell's Exploration of Central Queensland Postage Stamp

Australia 1960 Melbourne Cup Centenary 5d Postage Stamps Strip

1939 Baseball Centenary First Day Cover

Robert Millikan Commemorative Stamp

1939 Baseball Centennial First Day Issue Cover

Ecuador 5 Centavos Bicentenario de la Mision La Condamine postage stamp

Collection of Early 20th Century US Postage Stamps on Album Page

Republica de Colombia 20 Centavos Postage Stamp (Waterlow & Sons)

King George VI and Queen Victoria 1940 Centenary Stamp

Used 5 (Kreuzer?) Stamp, Orange with Central Cross on Shield

Belgian Congo 'River Landscape' Postage Stamp, 10 Centimes

CORREOS MEXICO 5 CENTAVOS Commemorative Stamp: First Printing Press in America

Correos Mexico 10 Centavos Antonio D. Mendoza Commemorative Stamp

Newfoundland Postage Stamps Collection (1857-1908)

Ecuador 2 Centavos Airmail Stamp, Golden Gate International Exposition 1939

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

French Registered Mail Envelope with Centenary Stamps (1849-1949)

1939 Cooperstown First Day of Issue Baseball Centenary Stamp Envelope

Russian Zemstvo Stamp, 1 Kopek, 'In aid of soldiers and their families'