Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1

Worldwide Air Post Stamps and Postal History - Bulgaria

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Start price: $250

Buyer's premium:

1927, carmine Airplane surcharge 1L on 6L deep blue and pale lemon, horizontal pair imperforate between stamps, full OG, NH, VF and rare, Sanabria #1c, priced with ”…”,Scott #C4 var