1925 Cairo-Kano-Cairo R.A.F Flight. Cover carried on the return flight endorsed "By Special air mail, Kano-Cairo", addressed to "S/L Cunningham, R.A.F, Helwan" bearing Chad 75c with manuscript overprint "By Air Tchad Cairo" tied by Fort Lamy c.d.s (Nov 3), backstamped at Hilwan (Nov 20). Fine and very scarce, only about five covers recorded. Photo on Page 30. (Image1)

1926 Cairo-Khartoum R.A.F Test Flight. Cover with Egypt 5m cancelled at Abu Suwer (Jan 9), addressed to Khartoum endorsed "By kind permission of OC flight" and initialled by V.E Stoner, with violet "Special Flight / Cairo to Khartoum" and "Khartoum 11/1/26", very fine. 65 Private letters and five official letters were carried on this R.A.F test flight. Photo on Page 30. (Image1)

1926 Cairo to Cape Town R.A.F Survey Flight. Cover inscribed "By Aeroplane", flown from Heliopolis to Cape Town, then redirected to London and posted at Muizenberg (Apr 13) franked 2d coil stamp. Handstamped oval "HELIOPOLIS DETAILS / 1 MAR 1926 / ROYAL AIR FORCE" and signed "C. Pulford, Wing Cdr, 1.3.26, o/c Cape Flight, to be carried by machine S1104". Fine and very rare, just two other flown covers with this Heliopolis cachet recorded. Photo on Page 34. (Image1)

1928 Lord Carberry Holland-Egypt-Kenya Flight. Picture postcard posted within Cairo (Dec 6) franked 5m, then readdressed to London, carried on Lord Carberry's flight and posted upon arrival at Nairobi (Dec 11) franked KUT 5c + 10c. Very scarce, just six cards flown from Cairo. Photo on Page 34. (Image1)

1929-30 Walter Mittelholzer African Safari Flight. Registered cover and card flown from Zurich, franked 4.40f to Khartoum or 6.40f to Nairobi both with arrival datestamps and boxed flight cachets; and a cover to J.S Davis in Nairobi bearing uncancelled Sudan 5m + 10m, endorsed "By Swiss Aeroplane to Nairobi" and "Carried by aeroplane from Khartoum by kind permission of Capt. Mittelholzer", one of fifty letters carried from Khartoum to Nairobi. (3).

1930 Walter Mittelholzer African Safari Flight. 1930 Cover to J.S Davis at Nairobi bearing uncancelled Sudan 5m + 10m, handstamped "FIRST FLIGHT", endorsed "By Swiss Aeroplane to Nairobi" and "carried by aeroplane from Khartoum to Nairobi by kind permission of Capt. Mittelholzer", the reverse with "F.J Field" handstamp and "Guaranteed Flown, John S. Davis 5/2/30". Walter Mittelholzer flew in a Fokker monoplane from Zurich to Nairobi, picking up Baron Rothschild as a passenger at Alexandria. Letters were picked up at some stops including fifty letters at Khartoum, which were handed over to the Nairobi Postmaster upon landing.

Egypt 1931 Zeppelin. Picture postcard of the Graf Zeppelin bearing lower right corner marginal Zeppelin 50m with surcharge error "1951" for "1931" and plate number "A29" cancelled by "Caire" Graf Zeppelin c.d.s (Apr 11) with a further strike alongside, and proof impressions of the three 10th April Graf Zeppelin datestamps for "Suez", "Alexandrie" and "Port Said", probably a souvenir card presented to one of the Zeppelin's officers or passengers. The Suez Zeppelin c.d.s is one of the great rarities of Egypt aerophilately, just a handful of examples recorded. Photo on Inside Front Cover. (Image1)

British Somaliland. 1935 (Dec 18) Cover from Berbera to Khartoum bearing Somaliland 6a + Silver Jubilee 1a, backstamped by Khartoum c.d.s (Dec 21) and scarce boxed "UNCLAIMED". A scarce Ala Littoria flight, only about 15 covers flown.

British Somaliland. 1935 (Dec 18) Cover from Berbera to Asmara bearing Somaliland 6a + Silver Jubilee 1a, with Asmara arrival c.d.s on the front (Dec 21), strangely then flown to Italy with Rome backstamp (Jan 2), presumably returned to Asmara. A scarce Ala Littoria flight, only about 15 covers flown. Photo on Page 34. (Image1)

1937 Mrs H.B Bonney Brisbane to Cape Town Solo Flight. Three covers flown on the Sudan legs of her flight, bearing Australia stamps cancelled at Brisbane (Apr 8) and Sudan stamps cancelled at Wadi Halfa on June 10th (2, one returned by air mail to Australia with four Sudan air stamps) or at Khartoum on June 13th, all with flight cachets and signed by Mrs Bonney. (3). Photo on Page 34. (Image1)

Sudan. 1936 (Feb 17 Cover from Geneina Fort to G.B franked 10m + 15m bearing a pair of "By Air Mail" labels, the upper label with the error "BY AIR MIAL", scarce on cover.