The lens (Summitar 5cm or 50mm f2 it was in a good shape before to be revised, now it is better. I am putting in sale that lovely Leica IIIc (1946-1947) in a very good shape, I bought it around 30 years ago in Belgium, the skin was broken and dry (probably shark skin, it was as fragile as a thin chocolate) so I removed because it wasn't nice in use and yes, it works. ).
eBay