Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Russia and Soviet Union - 1930, Moscow Zeppelin Flight, 40k dark blue and 80k carmine, imperforate complete set of two, 40k enlarged balanced margins, 80k has left edge and nice margins at three other sides, full OG, NH (80k) or very light trace of hinge, VF and scarce set in premium condition, W. Leupold certificate, C.v. $4,500, Est. $3,000-$3,500, Scott #C12b-13b