Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 3
Lot 1532:
1918, inverted black overprint on 70k brown and orange, postally used, VF and extremely rare, only 3 stamps recorded, expertized by A. Popov, NKVT guarantee hs, Bulat #2471 var, Est. $350-$400
Share this lot:
