It seems that in 49, there was already some photoshopskils...
As far as my knowledge goes....the crank starter or hand starting was standard until the end of the 49 model. Afterwards, it was an option until 52. correct me if I am wrong.
It's a CKD Belgian manufactured one from the Brussels Plant. I'll see if I can locate a picture.
I'm intending to retro fit one to my car - I thought I had the correct nut but it may not be right - I may therefore be on the lookout for a correct crank handle crank nut.