Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 1
Lot 510:
1935, 4c yellow, 5c blue and 8c deep orange, imperforated plate proofs in horizontal pairs, printed on India paper and mounted on cards, no gum as produced, NH, VF, Unitrade 220P-22P, C.v. CAD$600++, Est. $250-$300, Sc. # 220-22
Share this lot:
