I have a window regulator that I believe is for a 1929 / 1930 4 Door Chevrolet. It is stamped 11 29 . There are no other stampings or markings. How do I know exactly what I have and whether it is a Left or Right regulator?

Dave

Attached Images
1929 Window Regulator.jpg Regulator 1929.jpg
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Dave
VCCA # L 28873
VCCA #83 Tool Technical Advisor for 1914-1966
VCCA #83 1940 Chevrolet Technical Advisor