Russia C20-C25 CTO

Russia C 20-C25, canceled to order, $30.25. Michel 397-401, 406, Euros 44.80. Air Post 1930-1932. Airships: Communication from Tundra (deer) to the Steppes (Camel); Over Dneprostroi Dam; Over Lenin Mausoleum; Exploring Arctic regions; Constructing an Airship.