Primer Congreso Postal Panamericano Appraisals

German Empire 30 Mark Posthorn Stamp

German East Africa 2 Pesa Steamship Stamp

German Hyperinflation Stamp, 5 Million Mark

German Hyperinflation Stamp: 400 Tausend (Four Hundred Thousand)

Used German Stamp, Deutsches Reich 12 Reichspfennig

German Empire 4 Pfennig Definitive Stamp with Kaiser Wilhelm II

German Mother and Child Stamp, 'Deutsches Reich' (3 Pfennig)

German Canned Food Production and Welfare Surcharge Stamp

Nazi Germany 'Deutsche Luftpost' 15 Pfennig Airmail Stamp

Deutsches Reich 1935 Airmail Stamp (10 Reichspfennig)

German Reich 25 Pfennig Philatelic Exhibition Commemorative Stamp

France 1929 Joan of Arc 50c Stamp

Nederlands-Indië 1937 Wereld Jamboree Stamp

Queen Wilhelmina of the Netherlands Indies 20 Cent Stamp

Danish 5 Ore Stamp with Postmark

Ecuador 50 Centavos Bicentenario de La Mision Stamp

Italian Colonial Stamp for Ethiopia featuring Victor Emmanuel III

Used 1938 Presidential Series Woodrow Wilson $1 Stamp

Burma King George VI One Anna Stamp

Used Canada 10 Cents Stamp - Mounted Policeman

Chile 1934 Airmail 60 Centavos Stamp

Corrios de Colombia 5 Cincocentavos Cafe Suave Stamp

Czechoslovakian 2.50 Koruny Stamp featuring Praška

Czechoslovakian 1Kć Stamp featuring Jan Evangelista Purkynė

Bolivian Llama Stamp, 2 Cts

Bolivian 5 Centavos Stamp (Condor Design)

Barbados 1 Penny Stamp

Albanian 'Pylon Bridge' 25 Qind Stamp

Barbados Neptune with Trident Stamp, 1/4d Denomination

Barbados 1939 Tercentenary of General Assembly 2 1/2d Stamp

Argentine Republic 5 Centavos Stamp

Argentine Republic 5 Centavos Stamp, 1915 issue, with Postmark

Used U.S. Air Mail 6 Cent Stamp with Beacon Design

1929 2-cent Battle of Fallen Timbers Commemorative Stamp

George Washington Bicentennial 3 Cent Stamp

Antwerp Postmark on Liege 1939 Luik Belgian Stamp

Used Belgian King Leopold I 10 Centimes Stamp

Austrian 3 Heller Stamp with Empress Elisabeth

Austrian definitive stamp, 'Miner' series, 3 Groschen

Austrian Stamp - Tyrol region, 'Osterreich' (Austria), possibly from the 1930s