Russia C20-C25, C22 var CTO

Russia C 20-C25, C22 color var, canceled to order, $32.00. Michel 397-401, 406. Air Post 1931-1932. Airships: Communication from Tundra (deer) to the Steppes (Camel); Over Dneprostroi Dam; Over Lenin Mausoleum; Exploring Arctic regions; Constructing an Airship.