25h On 50h Stamp Appraisals

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

Czechoslovakian 50h Jan Evang. Purkyně Postage Stamp

Bohemia and Moravia 50h 'Sunburst' Triangular Postage Stamp

Czechoslovakia 1938 Jindřich Fügner 50h Postage Stamp

Protectorate of Bohemia and Moravia 50h A.M.F. (Allied Military Government Fiscals) Provisional Stamp

Protectorate of Bohemia and Moravia 50 H Postage Due Stamp

25 Cent Abraham Lincoln Air Mail Stamp

French Postes Sower Stamp, 25 Centimes

Singapore 50c Caravel Stamp

Bohemia and Moravia 50th Anniversary Triangular Stamp

France 1929 Joan of Arc 50c Stamp

France 1924 Paris Olympics 50c Postage Stamp

Idaho Statehood 50th Anniversary U.S. Postage Stamp

50p Queen Elizabeth II Postage Stamps

U.S. Postage 25th Anniversary Panama Canal Stamp

India 25 Pies Stamp

25 Centimos Stamp from Spain

Egyptian King Farouk 500 Mills Postage Stamp

Bolivia 50 Centavos Postage Stamp (Likely 1901-1904 Issue)

Pakistan 50 Paisa Stamp

German Hyperinflation Stamp, 50 Millionen (Million) Mark

50 Cent US Postal Stamp

Czechoslovakia 50 Heller Postage Stamp (Chained Lion)

50 Paisa Postage Stamp

Albanian 'Pylon Bridge' 25 Qind Stamp

Denmark 50 Ore Stamp with King Christian X Portrait, Postmarked 1919-1920s

Canadian 50-Cent Postage Stamp

50th Anniversary of Motion Pictures 3-cent Stamp

Ethiopia Italian Occupation 25 Centesimi Postage Stamp

Ethiopia Italian Occupation 50 Centesimi Postage Stamp

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

USA 25 Cent Saw-whet Owl Postage Stamp

Srodkowa Litwa 25 Fenigów Postage Stamp

Ecuador 50 Centavos Bicentenario de La Mision Stamp

German Reich 25 Pfennig Philatelic Exhibition Commemorative Stamp

German Zeppelin Airmail Postage Stamp, 50 Pfennig (LZ 129 Hindenburg)

Pan-American Union 50th Anniversary 3-Cent US Postage Stamp

German Hyperinflation Stamp - 500 Tausend (500,000) Mark

5 Cent Elias Howe US Postage Stamp (Used)

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