Russian Empire 15 Kopek Postal Stamp First Romanov Stamp Appraisals

Russian Empire 15 Kopek Postal Stamp (First Romanov Stamp)

Russian Empire Postage Stamp, 7 Rubles, Romanov Dynasty (1913-1917 period)

Russian Empire 5 Kopeck Stamp (Likely Reprint or Counterfeit)

Russian Empire 7 Kopeck Nikolai II Definitive Postage Stamp

Russian Empire 50 Kopecks Postage Stamp with Inverted Center

German Empire Postal Stamp with Kaiser Wilhelm II (4 Pfennig)

German Empire Postal Stamp (12 Pfennig)

Netherlands 15 Cent Stamp

United States 15 Cent Special Delivery Stamp

Early Japanese Empire Issue Stamp featuring a Sailing Ship

Azerbaijan Democratic Republic Soldier Stamp (10 Rubles)

Egyptian 15 Milliemes 'Statistical Congress' Postage Stamp

French Sower, Allegory of Peace (15 Centimes)

Azerbaijan Democratic Republic Stamp, 20 Rubles

Deutsches Reich 15 Pfennig Breslau 1936 Stamp

Curacao 15 Cent Luftpost Airmail Stamp

British 15p Stamp

Christmas Stamp, 15c

Austrian ÖSTERREICH 15 Groschen Tirol Stamp

Soviet Commemorative Stamp

Hong Kong 90c Stamp

Soviet Union Commemorative Stamp

Ceylon 6 Cents Stamp, Colombo Harbour and King George VI

Soviet Air Mail Stamp

Good King Wenceslas Stamp

Austria 5 Kronen Stamp

Austrian 10 Heller Postage Stamp (Emperor Franz Joseph I)

1926 U.S. Postal Cover with 1-Cent Franklin Stamp

1939 Cooperstown First Day of Issue Baseball Centenary Stamp Envelope

Commemorative Stamps Sheet

Wright Brothers Commemorative Stamp

Postal Commemorative Society U.S. First Day Covers & Special Covers Album

Harry Hawker Commemorative Stamp

Bavarian Official Stamp (Dienstmarke) 7 1/2 Pfennig

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

Wilbur Wright Aviation Stamp

Wright Brothers Airmail Stamp

Postmarked Envelope with Bicentennial Stamp

Collection of Austrian Postage Stamps (First Republic Era)

Vintage Postmarked Envelope with Flag Stamp