CO76-3-24S : 1976 - Set 2 FFC on board "Concorde - Test Flights Fairford-Johannesburg"

N°CO76-3-24S : Set of 2 First Flight Cover (FFC) carried on board "March 24-25, 1976 : Concorde N°2 G-BBDG - Test Flights BAC 369-370-371 RAF Fairford (United Kingdom) - Monrovia (Liberia) - Cape Town (South Africa) - Johannesburg (South Africa)" by Concorde British Airways :

- FFC n°1 : Franked Liberia 1 value postmarked in Monrovia (Liberia) dated March 25, 1976
+ Red First Flight cachet  "Carried on board on Flight 369 - Concorde BAC" (United Kingdom) dated March 24, 1976

- FFC n°2 : Franked South Africa 1 value postmarked in Smutslughawe "Airport" (South Africa) dated March 25, 1976
+ Green First Flight cachet "Carried on board on Flights 369-370-371 - Concorde BAC" (United Kingdom) dated March 24-25, 1976

(Quotation = 80,00€)
TRES RARE