Leica Winder M4-2
The Leica Winder M4-2 attaches to compatible Leica M cameras and makes them loud. Serial 08465, so this one has a maximum of 2fps advance. In very good cosmetic condition overall, with a bit of a waxy texture to the leatherette, one small ding on corner of the battery holder. Works, but these have a reputation for being a bit rough on cameras, so use at your own risk.