Stamp With Airplane Appraisals

Bulgarian Post 60th Anniversary Stamp (1 Leva)

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

New Zealand Stamp (5c Carnelian)

U.S. Postage John Ericsson Memorial 5 Cents Stamp

Used Australian Postage Stamp (Kangaroo and Map Series)

Yellowstone National Park Postcard Stamp

Vatican City Stamp

Liberty Bell Commemorative Stamp

Indian Family Planning Stamp

Ceylon 6 Cents Stamp, Colombo Harbour and King George VI

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

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

Canadian 2 Cents Postage Stamp (George V)

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

Dr. Sun Yat-sen (Martyrs)

New Zealand Christmas Stamp 1979

Trans-Pacific Airmail Stamp 1935

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

German Postage Stamp

Fokker Super Universal Stamp

Amadeo P. Giannini Commemorative Stamp

Belgian Stamp

Australia Day Stamp 1982

Stamp featuring the Flag of the Republic of China

General José de San Martín 10 Centavos postage stamp

1934 Mother's Day Three Cents U.S. Postage Stamp (Scott #737)

Antigua 1876 5 Centavos Postage Stamp with Face of Bolivar

2.50 Krone Stamp from Denmark

Australian Kangaroo Stamp

Tadeusz Kościuszko U.S. Postage Stamp, 5 Cents

Belgian Postal Stamp with 'NORD' Duplex Postmark

Ulysses Butterfly Stamp

Gibraltar 1D Postage Stamp depicting HMS Victory and Queen Elizabeth II

Elias Howe 5-cent US Postage Stamp

Postmarked Envelope with Bicentennial Stamp

Trans-Pacific Airmail 1935 Stamp