Landing Of Columbus Stamp Appraisals

1940 10-Cent Mark Twain Commemorative Postage Stamp

Used 2 Cent John Greenleaf Whittier US Postage Stamp

Ulysses S. Grant 18 Cent Postage Stamp

1939 New York World's Fair 3 Cent Postage Stamp

1939 Golden Gate International Exposition United States Postage Stamp

Rhode Island Tercentenary Postage Stamp (1936)

Austrian Franz Joseph I. 10 Heller Postage Stamp (1908 issue)

Austria 3 Schilling Stamp (Republic Series)

Free French Forces 1944 Resistance Stamp (10 centimes)

USSR 1980 Postage Stamp - Jean Auguste Dominique Ingres (Self-Portrait with Vénus Anadyomène)

Swiss 'Clara Bär' Commemorative Postage Stamp

German Empire 'Germania' 24 Pfennig Postage Stamp

USA 25 Cent Saw-whet Owl Postage Stamp

4-Cent Abraham Lincoln Postage Stamp

25 Cent Abraham Lincoln Air Mail Stamp

4-Cent Abraham Lincoln Postage Stamp

4-cent Abraham Lincoln Postage Stamp

George C. Marshall Commemorative Stamp

Five Dollar Stamp with Taiwanese Flag

Vintage US Revenue Stamp Cufflinks

4 Cent Purple Abraham Lincoln Stamp

Canada 1996 Winter Olympics Stamps

Queen Elizabeth II 2d Postage Stamp

3 Cent George Washington Stamp (1861)

1 Gulden Stamp from the Netherlands

1 Cent Green George Washington Stamp

Canadian Stamp featuring Trillium

Eugene O'Neill Commemorative Stamp

Robert Milikan Commemorative Stamp

United States 3 Cents Postage Cancellation Mark

U.S. Postage 3 Cent Horticulture Stamp

50p Queen Elizabeth II Postage Stamps

National Parks Centennial Stamp Sheet

Amadeo P. Giannini Commemorative Stamp

2-Cent United States Postage Stamp (Scott #210)

12p Stamp Featuring Charlotte Brontë

Deutsche Post Pfennig Definitive Postage Stamps (15, 20, 30, 40, 60 Pfennig)

Australian Stamp Featuring 1923 Car

British Royal Mail Violinist Stamps

Wright Brothers Commemorative Stamp