Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 1127:
Description
1918, black overprint (type 24) over 20k on 14k blue and carmine, postal cancellation, slight crease, still a collectable copy of this very rare stamp, VF appearance, expertized by J. Bulat, the stamp is not listed in the Cat., Est. $200-$250
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