31.8.1924, flight event "SOLOTHURN-GRENCHEN" with postmark "Zurich 1.9.24" on airmail card with 40 Rp impression, franked with Michel number 181, superb (Image 1) (Image)

10.5.1925, airmail "Basel-Zurich", special card with vignette and Michel number 181, superb postcard (Image 1) (Image)

31.5.1925, "International flight meeting Geneva", airmail cover from "Geneva" to Paris with Michel number 179 and 181 and 2 vignettes, superb cover (Image 1) (Image)

17.5.1926, registered cover from "LE LOCLE" to Basle, franked with Michel number 182, superb (Image 1) (Image)

8.8.1927, first mail flight "Basle ST. GALLEN", superb postcard (Image 1) (Image)

15.12.1929, "2. Swiss Africa flight", Zurich Khartoum, registered cover with good franking (Michel number 189-91 x), minimal blotched superb (Image 1) (Image)

2.12.1930, "3. Swiss Africa flight", Zurich GAO, registered cover with good franking, among others Michel number 233 and 245 x, superb (Image 1) (Image)

15.1.1940, "Naples JOHANNISBURG", legitimate registered cover with retour-memo, superb (Image 1) (Image 2)

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13.7.1943, "30 years alps flight", "BERN Zurich" and "ZURICH-BERN", 2 superb letters (Image 1) (Image)

20.9.1944, "Zurich-Geneva" and "GENEVA-ZURICH", 2 registered covers, very fine / superb (Image 1) (Image)

22.5.1946, "Lucerne LOCARNO", superb cover (Image 1) (Image)

23.5.1946, "LOCARNO LAUSANNE", special delivery cover, superb (Image 1) (Image)

28.4.1949, Pro aero special flight, 3 return flights, superb (Image 1) (Image)

27 / 8.4.1949, Pro aero special flight, all 6 stages, superb (Image 1) (Image)

1924-1947, small lot of 8 different Special flights, mostly superb (Image 1) (Image)