NSU OSL 501 1938...
NSU OSL 501 1938 500cc OHV
Engine number: 336911 Frame number: 1085843
Year: 1938 Cylinder capacity: 500 cc
Documents: original and modern Austrian road registration
video: https://www.youtube.com/watch?v=phPbVsyAj94
The history of the NSU OSL begins with a great depression. After the 500 cc motorcycles from NSU were never able to score points in competitions and racing successes were...
