Robert Milikan Postage Stamp Appraisals

Edward VII 'Three Pies' India Postage Stamp

British India Queen Victoria 2 Rupees Postage Stamp

German Empire 'Germania' 24 Pfennig Postage Stamp

Republic of China Postage Stamp featuring Sun Yat-sen

Belgian Congo 'River Landscape' Postage Stamp, 10 Centimes

3-Cent George Washington Bicentennial Postage Stamp

Italian Postage Stamp

90 Fils Stamp of United Arab Emirates

Republic of China Junk Ship Postage Stamp

1 Cent Green George Washington Stamp

Nazi Germany Airmail Postage Stamp (5 Reichspfennig)

Collection of Austrian Postage Stamps (Second Republic Era)

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

Deutsches Reich Hindenburg 8 Pfennig Postage Stamp

Used Australian Postage Stamp (Kangaroo and Map Series)

King George VI 1½d Postage & Revenue Stamp (Roses, Thistles, Shamrocks, Daffodils)

Czechoslovakian Postage Stamp featuring Tom%C3%A1%C5%A1 Garrigue Masaryk (1 K%C4%8D%C4%8D)

Collection of Early 20th Century US Postage Stamps on Album Page

Greek Postage Stamp - Apostle Paul at Areopagus

Dr. Sun Yat-sen (Martyrs)

Trans-Pacific Airmail Stamp 1935

French Sudan 1 Franc Postage Stamp (1F)

Cabinet Card (Carte de Visite) of Robert Gill

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

Russian Empire 50 Kopecks Postage Stamp with Inverted Center

Two-Cent Red Stamp

French Mercury Head Stamp (Semeuse Type)

King George V One Shilling Postage and Revenue Stamp

Afrique Équatoriale Française 2 Centimes Postage Stamp

German Empire Hindenburg 20 Pfennig Postage Stamp

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

United States 12 Cents Zachary Taylor Postage Stamp

Irish 'Eire' 1/2d Green Stamp with Red Overprint

French Sower (Semeuse) 10 Centime Postage Stamp

Vintage Postcard with 1 Cent US Postage Stamp and Seattle Postmark

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

Czechoslovakian Postage Stamp - X. Vsesokolsky Slet v Praze, Jindrich Fugner Portrait

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

U.S. Special Delivery Postage Stamp, 10 Cents

Jackson Square, New Orleans Painting by Robert C. Adler