Mauritania Postage Stamp Set Rider On Camel Appraisals

Austrian definitive stamp, 'Miner' series, 3 Groschen

Hong Kong Elizabeth II 'The University of Hong Kong' Commemorative Stamp (1841-1941)

Hong Kong 70c Stamp

Fokker Super Universal Stamp

5d Blue Queen Elizabeth II Stamp

Canada 10 Cent Stamp

Harry Hawker Commemorative Stamp

Italian Stamp with King Vittorio Emanuele III

Used 1 Annas India Stamp with King George V Profile

United States 1 Cent Commemorative Stamp (Washington - Greene, Mount Vernon)

Robert Millikan Commemorative Stamp

Barbados Neptune with Trident Stamp, 1/4d Denomination

Used German Stamp, Deutsches Reich 12 Reichspfennig

1940 Coronado Expedition 3-Cent Commemorative Stamp

Costa Rican 10c Airmail Stamp, 1937 National Exposition Issue

Burma King George VI One Anna Stamp

Used U.S. Air Mail 6 Cent Stamp with Beacon Design

German Reich 25 Pfennig Philatelic Exhibition Commemorative Stamp

Polish Stamp 7 Zł

4 Dollar Stamp

Italian East Africa 7.5 Centesimi Stamp featuring Victor Emmanuel III

The Holly and the Ivy Stamp

Netherlands Indies 3 Cent Stamp, Water Buffalo and Paddy Field

India 10 Paise Stamp

Eugene O'Neill Commemorative Stamp

Mexico 1942 Observatorio Astrofísico de Tonanzintla with Orion Nebula Stamp

German East Africa 2 Pesa Steamship Stamp

1 Kr Norwegian Stamp

United States 50th Anniversary of Motion Pictures 3-Cent Stamp

Ecuador 1939 'Mision Dolores' Golden Gate International Exposition Stamp

Nederlands-Indië (Dutch East Indies) Werled-Jamboree 1937 Stamp

Ecuador 5 Centavos Bicentenario La Condamine Stamp

5p Queen Elizabeth II Stamp

Azerbaijan Democratic Republic Stamp, 20 Rubles

British 8p Queen Elizabeth II Stamp

Swiss Pro Patria Stamp, 1950, 20+18 Centimes, Uri Motif

Italian Colonial Stamp for Ethiopia featuring Victor Emmanuel III

Corrios de Colombia 5 Cincocentavos Cafe Suave Stamp

German Empire 40 Pfennig Stamp

Nazi Germany 'Deutsche Luftpost' 15 Pfennig Airmail Stamp