India 1 Anna Service Overprint Stamp Appraisals

1939 Baseball Centenary First Day Cover

Sheet of 12 (12 Pfennig) German Postage Stamps with Postmarks

United States Postage Stamps 100th Anniversary Commemorative Card

1939 Baseball Centennial First Day Issue Cover

Newfoundland Postage Stamps Collection (1857-1908)

Used '10' Denomination Postage Stamp with Circular Postmark

Magyar Posta Olympic Games Munich 1972 Football Stamp

Iceland 10 Aur Philatelic Stamp featuring Skógafoss Waterfall

3-Cent George Washington Bicentennial Postage Stamp

2 Cent 1890-93 George Washington Postage Stamp (Series Issue)

King George VI and Queen Victoria 1940 Centenary Stamp

United States 10 Cents Parcel Post Official Stamp, Type PR85

Czechoslovakia 1938 Jindřich Fügner 50h Postage Stamp

U.S. Postage 3 Cent 'Gardening Horticulture' Stamp (1958)

Polish 10 Zloty Postal Stamp featuring Józef Piłsudski

Anglo-American Occupation Zone Germany AM POST Stamps, 1945 Issue

1926 Handwritten Envelope with 2-Cent Stamp and Postmark

Postmarked Envelope with Bicentennial Stamp

Belgian Congo 'River Landscape' Postage Stamp, 10 Centimes

Silver-colored Coin with '100' and Eagle Motif (Obverse)

Iraqi Postage Stamp featuring King Faisal I (likely 1932-1934 issue)

Correos Mexico 10 Centavos Antonio D. Mendoza Commemorative Stamp

United States 1938 The States Ratify The Constitution 3 Cent Postage Stamp

1934 Wisconsin Tercentenary 3 Cent Stamp - Nicolet's Landing

Postage Stamp: George VI and Queen Elizabeth (Morocco Agencies)

United States 25 Cent William McKinley Postage Stamp (Series 1922-1938)

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

Block of Four 1976 Helvetia Pro Juventute Stamps (Elderberry Motif)

Ecuador 2 Centavos Airmail Stamp, Golden Gate International Exposition 1939

Collection of German 'President Hindenburg' Definitive Postage Stamps (1933 issue)

United States 3-Cent 150th Anniversary of the Adoption of the Constitution Stamp

German Philatelic Collection - Adolf Hitler and Military Fieldpost Stamps (1941-1942)

1939 Cooperstown First Day of Issue Baseball Centenary Stamp Envelope