Olympus OM Winder 1 with original box and manual!
The Olympus OM Winder 1 is a compact, motorised film advance accessory made for the classic Olympus OM series of 35mm SLR film cameras. It attaches to the base of compatible cameras (like the Olympus OM-1 and Olympus OM-2) to automatically advance the film and cock the shutter after every shot.
It is compatible with several models, including the OM-1, OM-2, OM-10, OM-30, and OM-40.