Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3
Lot 1425:
1909-13, 2k dark blue, complete sheet of 25 with space between stamps 3.1-3.2mm, some marginal defects did not affect stamps, full OG, stamps are NH, VF, Chuchin #3, Schmidt #7, C.v. $175 as hinged singles, Est. $100-$150
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