Worldwide Air Post Stamps and Postal History, One Man Collection of Tannu Tuva, Philatelic Rarities of the World, Part 1
Lot 531:
Description
1896, three stamps with red surcharges (types a, b, c or SG type 3-5) 2½a over black ”Zanzibar” overprint on 1a6p bister brown, the last one has surcharge strongly shifted to the bottom, each stamp with small ”z” variety of overprint, full OG, NH, mostly VF, C.v. $480++, SG #35/37, C.v. £455 as hinged, Est. $400-$500, Scott #24, 24C, 25
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