FRANCE - Egypt. 1926 (Sept 27), cover flown by M. D. Cortes and Lieut. de Vitrolles, on proposed attempt on the ‘World Record Straight Line Non-Stop’ Flight, franked by Sower issue 10c. green and 40c. red tied by ‘Bourget Aviation / Seine’ datestamps (27/9). The flight was discontinued at Kom Ombo due to engine trouble after 4’050 kilometres. Franked for return with Egypt 1923 5m. chestnut tied by KOM OMBO c.d.s. (Sept 28, 6pm.). Returned to Le Bourget with c.d.s. on front (2/10). A remarkable and very rare cover, with only 8 covers carried. Muller 156 = 15’000 pts. & Muller 21 = 10’000 pts. (Photo). Est. 750 - 1 000 CHF.