This a really excellent ETRSi 120 back for the Bronica ETR, ETRS and ETRSi cameras is in superb condition and great working order, complete with darkslide.
This back has minimal signs of use other than the usual minor paint loss on the bottom of the door, but is otherwise cosmetically pretty much mint. Mechanically the back works perfectly, except that the darkslide can be removed when the back is not on the camera – but the price is lower than normal because of this.
A great addition for your Bronica ETR 645 outfit – you can never have too many backs! 120 insert included. This is the latest ETRSi version with a crank instead of the thumbwheel for advancing film when loading the back.