Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 2
Lot 904:
1899, Poseidon’s Trident with Stars at Sides, 1g violet, horizontal pair imperforated between stamps, in addition left stamp has a dot in ”Σ” variety and both stamps have no control marking, full OG, NH, VF and very scarce, C.v. $250 as hinged, Est. $250-$300, Sc. #46a
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