The Heinkel He 70 Blitz prototype, first flown on 1 December 1932. It set eight world records for speed over distance. To D-2537 in June 1933; to D-UHUX in 1934. Crashed in Carcassonne, France on a Lufthansa flight to Seville, on the mail route to South America, on 3 November 1934. Photo from: Nationaal Archief (Netherlands)

One of those inevitable 'big and small' pictures with a Junkers G38, probably taken at Dessau. This A50 is interesting enough in its own right - wearing a Japanese rising sun, it was flown from Berlin to Tokyo by Seiji Yoshihara from 20-29 August 1930. It became J-BECB in Japan. Yoshihara then unsuccessfully ventured to cross the Pacific in a floatplane Junior, J-BENB, and in a Saro Cutty Sark, G-ABVF. Photo from: Finnish Aviation Museum

Developed from the Northrop Gamma, the Northrop A-17 became the Douglas DB-8A. 36 machines ordered by Norway were sent to the 'Little Norway' flying school in Canada. This one was delivered with Norwegian serial 305. Photo from: National Museum of Denmark