Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 2030:
1904, red surcharge 1pi on 10k dark blue on vertically laid paper, used on pre-printed cover from Trebizond (now Trabzon) to Constantinople, postmarked on arrival, light cover fold at bottom did not affect the stamp, F/VF, Est. $200-$250, Scott #33
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