German? made Framo 501, Not sure of the year as they were made between about ~1938/9 throughout the war. At the end of WWll, The factory was taken apart and Russia was rewarded with the factory as part of war reparations. I don't know if the Russians made any Framo 501's or if they used the reparations for another use so I couldn't tell you if that is 100% for sure a German version. By 1950, Germany was again making Framo's with the introduction of the 901. ..... What do I win? ? .
The Jalopy Journal
