Pan American Union Stamp Appraisals

United States Flag Stamp

Triangular "CORREOS DE BOLIVIA" Stamp

Robert Milikan Commemorative Stamp

Oliver Wendell Holmes Stamp

3 Cent George Washington Stamp (1861)

United States Parcel Post Stamp, 2 Cent (Type 1)

United States 5 Cents Pilgrim Tercentenary Stamp

Bighorn Sheep Stamp

US 3-Cent George Washington Postal Stamp

Manuel Belgrano 1/2 Centavo Postage Stamp

5 Cent George Washington Stamp

Liberty Bell Commemorative Stamp

Baltimore and Ohio Railroad Employee Pass

1 Cent Green George Washington Stamp

Eugene O'Neill Commemorative Stamp

Brazil 100 Reis Dom Pedro II Stamp

United States 15 Cent Special Delivery Stamp

Argentine Republic 5 Centavos 'Labor' Postage Stamp

USA 2 Cent Stamp

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

James Fenimore Cooper 2 Cents US Postage Stamp

Thomas Paine Stamp

Boulder Dam - 1935 U.S. Postage Stamp

1959 4-Cent United States Postage Flag Stamp

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

Postmarked Envelope with Bicentennial Stamp

1 Cent Benjamin Franklin Stamp

U.S. Postage Stamp: 'To the Fine Arts' 5-Cent

Bolivian Airmail Stamp - II Congreso Eucaristico Nacional

United States 10 Cents John Tyler Postage Stamp

U.S. Postage John Ericsson Memorial 5 Cents Stamp

United States 4 Cents Defense Stamp

Rochambeau Stamp

U.S. Postage 'To The Fine Arts' 5-cent Stamp (1962)

United States 1½ Cents Martha Washington Postage Stamp

1940 Coronado Cuarto Centennial 3-Cent US Postage Stamp

21 cent United States Air Mail Stamp

1930 Charleston, South Carolina 250th Anniversary Stamp

Vintage 'THE BROOKLYN UNION GAS CO.' Industrial Tool Box

4-Cent Abraham Lincoln Postage Stamp