Sower Postage Stamp Appraisals

Dominican Republic 'Primera Madre' Postage Stamp

Austrian "Imperial Royal" 60 Heller Postage Stamp (1916 Jubilee Issue)

Netherlands Postage Stamp

Czechoslovakian 20 Haleru Postage Stamp

Chile 30 Centavos Postage Stamp (José Manuel Balmaceda)

King George V Halfpenny Postage and Revenue Stamp

Croatian "HRVOJE" Airmail Stamp (1943 issue)

1939 Golden Gate International Exposition United States Postage Stamp

United States 2-Cent Washington Bicentennial Postage Stamp (1932)

Polish Stamp

Collection of 1960s United States Commemorative Postage Stamps (Eight Stamps)

Jose de San Martin Postage Stamp, Argentina

Austrian Postage Stamp with St. Pölten Cancellation

Queen Elizabeth II 2d Postage Stamp

Australian Postage Stamp

Brown Vignette Postage Stamp with Ship Scene

Canadian Postage Stamp

Collection of Australian and South Australian Postage Stamps

Christmas Noël Stamp

Collection of Australian Postage Stamps

Frank Lloyd Wright Postage Stamps

King George V 1/2 Penny Postage & Revenue Stamp (D.L.R. Printing)

Canada 1 Cent Postage Stamp

Egyptian Postage Stamp (Fouad I)

Egyptian King Farouk 500 Mills Postage Stamp

United States 3-Cent Admiral Farragut and Admiral Porter Postage Stamp

Argentine Republic Postage Stamp (Manuel Belgrano)

Canadian 3 Cents Postage Stamp featuring King George VI

1937 Chamonix-Mont-Blanc Ski Jumping Postage Stamp

US Postage Stamp: West Point - United States Military Academy

Czechoslovakian 'Česko-Slovensko' Koruny Postage Stamp

Colombian 1/2 Centavo Postage Due Stamp - Palacio de Comunicaciones

5 Cent Frances E. Willard US Postage Stamp

Bohemia and Moravia 50h 'Sunburst' Triangular Postage Stamp

France 1931 Colonial Exhibition Postage Stamp

Taiwan Postage Stamp

Eisenhower Postage Stamps

Austro-Hungarian 80 Heller Postage Stamp (Embossed)

Egyptian 15 Milliemes 'Statistical Congress' Postage Stamp

Vintage U.S. Postage Stamps