Zeppelin over North Pole, 1931

30 Mongolian möngö 1977

Монголія

Air Mail. History of Airships

Montgolfier's Balloon 5 грн	Zeppelin over North Pole, 1931	Osoaviahim, Russian Arctic Cargo 5 грн	Machinery transport, Russian planned
Flying crane, French planned. 24 грн	Russia Polar Exploration Stamp and Sukhe Bator statue.	North, Russian Heavy Duty Cargo 12 грн	Aeron-340 Russian Planned