"(Belgium) (Polar) Belgium-Poland-Russia:Balloon flight card,19361936 Gordon Bennett Cup, carried by renown Belgian balloonist E.de Muyter: flown by plane to Warsaw, Poland; then on de Muyter's balloon ""Belgica"" that flew 1715km in 46 hours, and landed way north, near Arkhangelsk. Imprint on reverse states, in part, that ""une partie du courrier a ete perdu"" - part of carried mail was destroyed or lost (probably thrown out to prolong the flight)."
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