Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 3
Lot 1498:
Description
1918, red overprint (type 1) on 10k dark blue, bottom margin pane of 25, some perf separations, full OG, NH, VF and scarce multiple, each stamp expertized by Dr. Seichter, Bulat #824b, C.v. $1,250++, Est. $500-$600
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