50th anniversary of the 1931 Polar Flight. Postage stamp issued in Mongolia in 1981. In the left upper corner is the 1931 stamp: The Graf Zeppelin and icebreaker Malygin (USSR, 1931).

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Size: 6850px × 10369px
Location: Mongolia
Photo credit: © Adam Ján Figeľ / Alamy / Afripics
License: Licensed
Model Released: No

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