Twain Stamp Appraisals

United States 25 Cent William McKinley Postage Stamp (Series 1922-1938)

Australia 2 1/2d Centenary of Mitchell's Exploration of Central Queensland Postage Stamp

Brazil 200 Reis Aviação Airmail Stamp

Bolivian Airmail Stamp - II Congreso Eucaristico Nacional

Australian Duke and Duchess of York Stamp

Austria 12 Groschen Stamp, Traditional Man from Oberösterreich

Norwegian 2 Kr Stamp

Canadian Postage Stamp

Great Britain 9d Red Stamp

1 Gulden Netherlands Stamp

Queen Elizabeth II Commemorative Stamp

Hong Kong 90 Cent Stamp

United States 2 Cents Postage Stamp (Statue of Liberty)

1-cent Gilbert Charles Stuart U.S. Postage Stamp

1973 Canadian Stamp - Figure Skating

1939 New York World's Fair 3 Cent Postage Stamp

India 10 Paise Stamp

Danish Stamp

US Postage Stamp: West Point - United States Military Academy

The Holly and the Ivy Stamp

Panamanian "Primer Congreso Postal Panamericano" 5c Stamp

U.S. Postage 3 Cent Horticulture Stamp

Used Belgian King Leopold I 10 Centimes Stamp

New Zealand Four Dollar Stamp

Italian Stamp - Castello dell'Imperatore

5 Paise Stamp (Refugee Relief)

Canada 17 Postage Stamp

1 Kr Norwegian Stamp

Robert Milikan Commemorative Stamp

Danish 70 Øre Stamp

Bermuda 2½d Postage Stamp (King George VI)

United States 3 Cents Postage Stamp Design

United States 4-cent Civil War Generals Commemorative Stamp

Old Stamp Sheet

Republic of Korea Postal Stamp featuring a Celadon Vase

Bolivian II Congreso Eucaristico Nacional Airmail Stamp (45 cts)

Daniel Webster US Postage Stamp, 3 Cents

Hungarian Postage Stamp

Canada 5-cent Wild Flower Stamp

USA 2 Cent Stamp