Zeppelin over North Pole, 1931

30 Mongolian möngö 1977

Монголия

Air Mail. History of Airships

Montgolfier's Balloon 9 руб	Zeppelin over North Pole, 1931	Osoaviahim, Russian Arctic Cargo 9 руб	Machinery transport, Russian planned
Flying crane, French planned. 44 руб	Russia Polar Exploration Stamp and Sukhe Bator statue.	North, Russian Heavy Duty Cargo 22 руб	Aeron-340 Russian Planned