Max Turkheimer of O.T.A.V.
Max Turkheimer began producing motorcycles in 1902 and is perhaps best known for the Moto Astra. The company was a main agent for Ariel, and concurrently advertised Moto Derad.
Prior to building his own, Turkeimer had been importing Hildebrand and Wolfmuller motorcycles since 1894
Manufactured O.T.A.V. motorcycles and cyclecars before WWI.