King Leopold Ii Stamp Appraisals

United States 3-Cent Thomas Jefferson Postage Stamp

Bulgarian Post 60th Anniversary Stamp (1 Leva)

James Buchanan 15 Cents United States Postage Stamp

International Year of the Child Stamp

New Zealand Stamp (5c Carnelian)

Czechoslovakian 20 Halero Postage Stamp

Argentine Republic Postage Stamp (Manuel Belgrano)

1979 International Year of the Child Stamp

Canadian Red Cross Stamp

Polish Commemorative Stamp

Canadian Maple Leaf Stamp

Denmark 5 Ore Christian X Postage Stamp

Golden Gate International Exposition Postage Stamp (1939)

5 Cent Frances E. Willard US Postage Stamp

Swiss 'Clara Bär' Commemorative Postage Stamp

Orville and Wilbur Wright Stamp

U.S. Postage John Ericsson Memorial 5 Cents Stamp

Used Australian Postage Stamp (Kangaroo and Map Series)

Yellowstone National Park Postcard Stamp

Corrios de Colombia 5 Cincocentavos Cafe Suave Stamp

1940 Coronado Cuarto Centennial 3-Cent US Postage Stamp

Great Britain 1s Green (Scott # 177) Stamp

21 cent United States Air Mail Stamp

2017 Panini Select XRC Prizm Patrick Mahomes II Football Card

1935 Canada George V and Queen Mary 'Silver Jubilee' Three Cents Postage Stamp

Liberty Bell Commemorative Stamp

Indian Family Planning Stamp

Swiss Pro Patria Stamp, 1950, 20+18 Centimes, Uri Motif

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

Vatican City Stamp

Amadeo P. Giannini Commemorative Stamp

Belgian Stamp

Australia Day Stamp 1982

Stamp featuring the Flag of the Republic of China

Republic of China Postal Stamp, "Sun Yat-sen with Martyr's Memorial" Series, 1 Fen Denomination

Czechoslovakia 1920 Hradcany Surcharge Issue Postage Stamp, 25h on 50h, Lion and Chain Design

United States 5 Cents James Monroe Postage Stamp

United States 1902 Series 1 Cent Benjamin Franklin Postage Stamp

1869 United States 1c Z Grill Stamp

Japanese Crane Stamp