Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 1
Thursday, February 2, 2023 at 4:00 PM UTC
Lot 157:
1943, Flag of Czechoslovakia, 5c blue violet, blue, red and black, double impression of ”Czechoslovakia”, full OG, NH, VF, a copy of PF certificate for block of 20, stamp position mentioned, C.v. $600, Est. $200-$300, Scott #910a
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