Keywords: Motor-Sport-Museum am Hockenheimring, 1937 Mercury, with 596cc Scott twin-cylinder two-stroke engine, pic1.JPG Photographed at the Motor-Sport-Museum am Hockenheimring Germany own 2013-03-21 13 56 27 Alf van Beem CC-zero Motorcycles in the Hockenheimring Motor-Sport-Museum Unidentified motorcycles |