History of Aviation, Rare Stamps and Postal History of the World, Part 2
Lot 899:
1941, inverted dark red overprint ”GK.-Ssarny” on 50k black, type II, bottom sheet margin single, printed on reverse side of dark violet paper (not glazed), no gum as issued, NH, VF and extremely rare, only 7 stamps of type II possible with double error, Z. Mikulski certificate, Mi #4A G K, var, C.v. €5,250, Est. $1,500-$2,000
Share this lot:
