This sale is for a mint condition Mamiya 645 Rotating Tripod Adapter, of course in perfect working order. It is suitable for use on the Mamiya 645, M645 and 645AF series cameras – and probably many others such as Bronica ETR.
This really unusual adapter lets you switch from landscape to portrait format in a couple of seconds – far easier that doing the same with a tripod head, and an automatic 90 degree change in position – unlike with a tripod head where you have to search for the correct position.
It is really in superb barely used condition with absolutely minimal signs of use. It is in perfect working order.
Get yourself a fully working and very rare adapter while you can. You will not find a better example.