1931 (June 24) Air Mail cover from England to Nairobi with 1d + 6d tied by Rotherham datestamps, carried by Imperial airways "City of Khartoum" which made a forced landing at Kibanga Port, 15 miles from Entebbe, taken by road to Kisumu then flown to Nairobi by a Wilson Airways charter flight, proven by Kisumu and Nairobi backstamps both dated 5 July. Scarce, few covers known carried on this special flight.

1931 (Sep 9) Air Mail cover from Scotland to Nairobi, 2d + 5d tied by Inverness datestamps, with Kisumu and Nairobi backstamps both dated September 20th proving the cover must have been flown from Kisumu despite there being no written record of any flights at this date.

1934 Covers carried on charter flights from Dar-es-Salaam, to Usumbura (Jan 20, franked 40c, signed by the pilot A. Franscombe); to Moshi via Arusha (Jan 27, registered, franked 70c, with C.O.P); to Songea (Feb 19, registered franked 65c); or to Kigoma (Mar 9, registered franked 65c, with C.O.P). Also 1937 (Nov 4) registered cover franked 70c from Mwanza to London, flown by Wilson Airways to Kisumu and then by Imperial Airways. A fine and scarce group. (5).

1934 (Feb 10) Stampless registered O.H.M.S cover with District Officer Utete Postal Frank cachet, carried on the first flight from Utete to Dar-es-Salaam, three light folds, otherwise fine and very scarce, just six covers supposedly flown.

1934 (Oct 2/3) 15c Envelope uprated 20c, carried on the first flight from Dar-es-Salaam to Mafia, signed by the pilot V.W Soltau; Post Office manifest for mail carried on this flight (one bag of 9oz to Mbeya and one bag of 1lb 11oz to Mafia) with Daressalaam and Mafia datestamps; Post Office notice to the inhabitants of Mafia Island announcing the new forthcoming air service; and stampless O.H.M.S cover with A.D.O Mafia Island Postal Frank cachet sent to the Dar-es-salaam Postmaster carried on the first return flight, signed by the pilot V.W Soltau. A fine group, the Post Office manifest unique. (4).

1934 (Nov 20) O.H.M.S cover franked 20c pair from Sumbawanga to the Postmaster at Dar-es-Salaam inscribed "1st Air Mail Sumbawanga" and signed "A.N Francombe, Pilot Wilson Airways, 22/11/34" with arrival backstamp (Nov 21). Francombe flew the Director of Agriculture Mr Harrison on a round "safari" via Morogoro, Shinyanga, Mwanza and Sumbawanga, just two flown and pilot signed covers recorded from Sumbawanga, fine and extremely rare. Photo on Page 34. (Image1)

1936 (Apr 18) 20c Envelope uprated 40c, carried by charter flight from Dar-es-Salaam to Zomba, Nyasaland, with arrival backstamp (Apr 22), signed by the pilot A. Francombe. A very scarce flight to Nyasaland, just ten covers carried. Photo on Page 38. (Image1)