Film back 12 - very good condition, almost unused, fully matching number on film inserter to the film holder body, clean film supporter, no issues. advance to the first shot and then no extra gaps or double exposures on images. Taking into account almost no colour loss on the mount I can say that this back was almost unused. New light seals are just installed. Some typical colour loss on outer body, very light and can be fixed with some paint if you want.
eBay