History of Aviation, Rare Stamps and Postal History of the World, Part 2
Lot 868:
1923, red surcharge strongly shifted to the bottom 5c on 300m olive green, top right corner sheet margin block of four, top stamps without ”CENT.”, while bottom ones have transposed surcharge lines, pre-printed paper fold, full OG, NH, VF. expertized by V. Erdwien, Mi #174 var, Est. $150-$200, Sc. #N56 var
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