A Ernst Leitz Leica iif serial number 712768 dating it to 1954, it's in good condition with a few light rubs but working really well at all speeds, the leather covering is in great condition, replaced at some point before I owned it?.

The 50mm f3.5 Elmar lens has a bell push type knob, serial number 651287 dating it to 1948. There is a very small screw missing from the outer knurled rim, I can't see what function it has and does not seem detrimental to its use, please see image.  Lens cap included.

I do not end auctions early, any questions, please feel free to ask.