The prototype of the Raab-Katzenstein RK 25. The third of three examples built, D-1701, also took part in the 1929 Challenge International de Tourisme and is seen on the far left wearing start number B3. B5 is the Akaflieg Darmstadt D 18, D-1561. The third aircraft is a BFW M 23, D-1711 / A9, flown by Alexander von Bismarck and wearing his famous family name. I-AANH / K3 is again in the background. Photo from: Bibliothèque nationale de France - Gallica

'Lombardi and Cupini.' Francesco Lombardi piloted this aircraft in the 1929 Challenge International de Tourisme. He took the ninth place in the 5942-km rally around Europe and 13th place in the overall contest, including technical trials. 'Cupini' looks suspiciously like Gino Capannini; Lombardi and Capannini flew another AS.1, I-AAVE, from Vercelli to Tokyo in 1930. Photo from: Bibliothèque nationale de France - Gallica

Powered by a 80-hp Cirrus engine and flown by Franz Kirsch during the 1929 Challenge International de Tourisme. Photo from: Bibliothèque nationale de France - Gallica

A better view of the sole Arado L.I. The date is given as 5 August. The aircraft crashed that afternoon, killing its designer, Hermann Hofmann. In the background are two Breda Ba 15 aircraft, I-AAAO / M4 and I-AAAP / M5. Photo from: Bibliothèque nationale de France - Gallica

CANT landplane trainer. I-AAPO was the only example to take part in the 1929 Challenge International de Tourisme but pilot Mario Stoppani damaged the aircraft in Basel which was the first stop in the rally from Orly. Event code K7 is in the circle behind the rear cockpit. Photo from: Bibliothèque nationale de France - Gallica