Luchtpost, Verdragstatenpost Polarfahrt Kaart van Wenen 21-7-1931 over Friedrichsfhafen naar de ijsbreker Malyguin (Sieger 119), pracht ex. met alle relevante stempels

Air Mail. Winged Globe 5 cents violet on cover from New York 5-7-1932 to New York. This cover was carried on board of the "Century of Progress", flown by Jimmie Mattern and Bennett Griffin during their attempt to break the Earth Aerial Circumnavigation Record in July 1932. They started on Floyd Bennett Field, New York, on July 5th and reached Berlin in a record time of 18.41 hours. On July 7th they reached Minsk in Belarus. Shortly after taking of for Moscow the plane crashed near Borisov. Very fine and extremely rare cover (only 10 flown) with the autographs of both pilots. In June 1933 Jimmie Mattern tried again to break the record with a rebuilt "Century of Progress" and this time solo, following the same route. This time he reached Moscow but made a forced landing in East Siberia. He was eventually rescued by Eskimos and flown to Nome, Alaska, by Russian pilots.

Islandfahrt. Christian X 30 aur rood en groen en 2 kronen bruin en groen op aangetekende envelop van Reykjavik 30-6-1931 (Sieger 114D) met alle relevante stempels naar Genua (I), fris pracht ex.