One Dollar Revenue Stamp Appraisals

Netherlands 15 Cent Stamp

Polish Stamp

Polish Commemorative Stamp

Danish Stamp

Italian 2000 Lira Stamp

1 Kr Norges Post Stamp

Australian Star Sapphire Stamp

Australian Wombat Stamp

Canal Zone 1/2 Cent George Washington Postage Stamp

1935 Michigan Centenary 3-Cent US Postage Stamp

Used 2 Cent John Greenleaf Whittier US Postage Stamp

Australian Stamp Featuring 1923 Car

Australia 20c Stamp

Bolivia 5 Cts II Congreso Eucaristico Nacional Airmail Postage Stamp

James Russell Lowell 3 Cents US Postage Stamp

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

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

"Fast Express" 2-Cent United States Postage Stamp

German 1 Reichsmark Postage Stamp (1923 Inflation Period)

25 Cent Abraham Lincoln Air Mail Stamp

John Tyler 10 Cents United States Postage Stamp

Chilean 10 Centavos Postal Stamp (Used)

Jose de San Martin Postage Stamp, Argentina

Austrian Postage Stamp with St. Pölten Cancellation

Bighorn Sheep Stamp

Czechoslovakian Postage Stamp - 1 Koruna with Portrait of T. G. Masaryk

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

1932 Los Angeles Olympics 3 Cents US Postage Stamp

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

United States 4 Cents Defense Stamp

Austrian definitive stamp, 'Miner' series, 3 Groschen

Wright Brothers Commemorative Stamp

5d Sir John Monash 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

The World of Mathematics, Volume One

U.S. Postage Five Cents Kosciuszko 1783-1933 Stamp

United States 1937 Army Issue Stamp (Lee/Jackson)