Crop of photo 585015. The second prototype of the Fh 104 Hallore. The Arado Ar 96 advanced trainer behind the Siebel is unmarked, but looks genuine. It was also on display at the Brussels aero exhibition earlier in 1937. Many sources claim the Ar 96 first flew in 1938 but the first prototype, D-IRUU, was already around early in 1937. Photo from: Fondazione Fiera Milano