History of Aviation, Rare Stamps and Postal History of the World, Part 2
Lot 710:
1930, Zeppelin issue, inverted blue with bronze powder overprint on Aviation School stamp of 10c vermilion and black, full OG, LH, VF and rare, only 50 stamps were produced, expert’s hs on reverse, C.v. $200, Est. $150- $200 , Sc. #C20a
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