Stamp With Airplane Appraisals

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

British Guiana 1 Cent George VI 'Ploughing a Rice Field' Stamp

United States 4 Cents Defense Stamp

1932 Los Angeles Olympics 3 Cents US Postage Stamp

James Russell Lowell 3 Cents US Postage Stamp

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

"Fast Express" 2-Cent United States Postage Stamp

Byrd Antarctic Expedition II 3 Cents U.S. Postage Stamp

German 1 Reichsmark Postage Stamp (1923 Inflation Period)

25 Cent Abraham Lincoln Air Mail Stamp

Austrian definitive stamp, 'Miner' series, 3 Groschen

Wright Brothers Commemorative Stamp

British Guiana 4c Stamp

5d Sir John Monash Stamp

Chilean 10 Centavos Postal Stamp (Used)

Jose de San Martin Postage Stamp, Argentina

Austrian Postage Stamp with St. Pölten Cancellation

Bighorn Sheep Stamp

Five Dollar Stamp with Taiwanese Flag

United States 10 Cents Parcel Post Official Stamp, Type PR85

United States 3 Cents Postage Stamp, Robert Louis Stevenson

United States 1937 Army Issue Stamp (Lee/Jackson)

7d Elizabeth II Stamp

Switzerland 80 Cent Stamp

Austrian 2 Kronen Stamp (1916-1918)

1940 Coronado Expedition 3-Cent Commemorative Stamp

British Guiana 4c Purple Stamp

1 Cent Benjamin Franklin Stamp

Chinese stamp commemorating mountaineering and the 10th anniversary of the People's Republic of China

Canada 10 Cent Stamp

New Zealand Diamond Jubilee Stamp

British 1 Penny Stamp (I.P.)

Canada Stamp - Royal Canadian Henley Regatta

£2 London Stamp

Used James Fenimore Cooper 2-Cent United States Postage Stamp

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

Polish Stamp 7 Zł

Australian 7 Cent Stamp

Barbados Neptune with Trident Stamp, 1/4d Denomination

Freedom to Speak Out Stamp