Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Russia And Soviet Union - 1934, Airships, 5k-30k, complete set of five, used on registered cover from Nagayevo (Far Eastern Kray) to USA in 1937, New York transit and San Francisco arrival ds on reverse, arranged on page from a Collection, VF, Est. $1,000-$1200 , Scott #C53-57