Cable release adapter for Leica LTM, Nikon F/F2, Widelux, Yashica A and other vintage cameras (e.g. Leotax, Nicca). This adapter allows the use of a modern shutter release cable release to be used on a variety of vintage cameras. These are uncommon items today! The condition is new.
I think most cameras, and perhaps all Leica thread mount cameras, have a collar that needs to be unscrewed to use this adapter, which only takes a couple of seconds to do. On many cameras the collars have been lost! These collars are small and easy to misplace. Of course a shutter release collar is really just a trim piece, and serves no important function (at least as far as I know - they are missing in some of my own cameras!).