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

Worldwide Air Post Stamps and Postal History - French Equatorial Africa - Pioneer Flight covers

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Start price: $150

Buyer's premium:

1942, inverted black overprint ”Africa Française Libre” on 2.50fr green and buff, used together with overprinted 8.50fr red brown and yellow on air mail registered cover from Fort-Lamy (now – N’Djamena) to Douala (Cameroon), French censorship tape and markings, VF and rare, C.v. $275 for stamp only, Scott #C1b, C14