This is a Leica 135mm F2,8 Elmarit-R (V1 - Single Cam). It can only be used on the original Leicaflex. Code No. 11111. S/N 2018859 Circa 1964. Series VII (7) filter front. It has Red Writing for the feet focusing scale. Externally the lens doesn't have any dings or dents, only some slight scuffing on the aperture ring. The glass is clean, only the usual dust consistent with age. Comes with front & rear caps