cover Sudan, 1932, 'Davis' correspondence flight cover to Nairobi, Kenya, franked with uncancelled 5m and 10m Camel (40, 41, Gibbons 41, 42), carried on unofficial experimental Swiss flight from Khartoum to Nairobi, ms. 'carried by aeroplane from Khartoum to Nairobi by kind permission of Capt. Mittleholzer', very fine, a similar cover brought £160 in Christie's London March 9, 1994 British Empire auction photo est.

Details

cover Sudan, 1932, 'Davis' correspondence flight cover to Nairobi, Kenya, franked with uncancelled 5m and 10m Camel (40, 41, Gibbons 41, 42), carried on unofficial experimental Swiss flight from Khartoum to Nairobi, ms. 'carried by aeroplane from Khartoum to Nairobi by kind permission of Capt. Mittleholzer', very fine, a similar cover brought £160 in Christie's London March 9, 1994 British Empire auction photo est.