Czechoslovakia 1 Koruna Postage Due Stamp Appraisals

Austrian 5 Krone Postage Stamp (1916-1918)

Collection of Early-to-Mid 20th Century Revenue and Definitive Postage Stamps

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

Australia 3c Jellyfish Stamp

Hungarian 1.20Ft Airmail Postage Stamp with Building Motif

Canadian Red Fox Postage Stamp

Dr. Sun Yat-sen (Martyrs)

Trans-Pacific Airmail Stamp 1935

Newfoundland Postage Stamp Collection

Indian Fish Postage Stamp

Two-Cent Red Stamp

Collection of Austrian Postage Stamps (Second Republic Era)

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

British 20p Queen Elizabeth II Postage Stamps

United States 12 Cents Zachary Taylor Postage Stamp

Australia 1940 1d Postage Stamp, King George VI (Postmarked)

Republic of China Postage Stamp featuring Sun Yat-sen

Belgian Congo 'River Landscape' Postage Stamp, 10 Centimes

3-Cent George Washington Bicentennial Postage Stamp

90 Fils Stamp of United Arab Emirates

Italian Postage Stamp

U.S. Special Delivery Postage Stamp, 10 Cents

Republic of China Junk Ship Postage Stamp

Costa Rica 10 Centimos Isla del Coco Postage Stamp

Used Australian Postage Stamp (Kangaroo and Map Series)

Tadeusz Kościuszko U.S. Postage Stamp, 5 Cents

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

Ceylon Queen Victoria 6 Pence Postage & Revenue Stamp (Purple)

United States 4 Cents Defense Stamp

U.S. Postage Five Cents Kosciuszko 1783-1933 Stamp

Republic of China Postage Stamp featuring Sun Yat-sen (2 Fen)

Pan-American Union 50th Anniversary 3-Cent US Postage Stamp

21 cent United States Air Mail Stamp

United States 3 Cents Postage Stamp with George Washington Profile

Australian 2 Pence 'Kangaroo and Map' Postage Stamp (King George V)

1930 Charleston, South Carolina 250th Anniversary Stamp

United States Postage Stamps 100th Anniversary Commemorative Card

Canada 5-cent Wild Flower Stamp

Ralph Waldo Emerson 3 Cents United States Postage Stamp

Indian Postage Stamp