A double-seater tandem with the passenger in front of the driver, just like in the planes of the period. Bourbeau and Devaux spent three years building it. It has a wooden body, metal “skin”, no reverse gear, and two gears with a rather unusual gear changing system: with the engine disconnected, the entire rear axle is moved to loosen the belts and change the pulley. Carlo Biscaretti purchased it already in 1938 on behalf of the “Comitato Promotore per il Museo Nazionale dell’Automobile in Torino” (Promoting Committee for the National Car Museum in Turin).