Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 3
Lot 1523:
1918, black overprints (type 47) on perforated 10k, 10k/7k (horizontal pair), 15k and imperforated 3k, nice and fresh, full OG, LH or hinged, VF, expertized by J. Bulat, U.P.V. and others, Bulat #2052/58, C.v. $155 (10k and 15k priced with ”-”), Est. $250-$300
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