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)

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

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

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

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

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

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

22.5.1946, "LAUSANNE Lucerne", superb cover (Image)

23.5.1946, "LOCARNO Lucerne", registered cover, superb (Image)

2.5.1947, "Geneva WASHINGTON", registered cover to Switzerland, superb (Image)

28.4.1949, Pro aero special flight "ST. GALL-LA CH`-DE-FONDS", franked with among others Michel number 518, superb cover (Image)

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