Bidspirit auction | Worldwide Air Post Stamps and
Worldwide Air Post Stamps and Postal History - Soviet Union - 1931, Airships, 10k-1r, imperforate complete set of five, enlarged margins, full OG, NH, VF, C.v. $390, Scott #C15-19
Worldwide Air Post Stamps and Postal History - Soviet Union - 1931, Airships, 10k-1r, imperforate complete set of five, enlarged margins, full OG, NH, VF, C.v. $390, Scott #C15-19