Thank you very much for looking!! This is the Horseman Increasing back (6x9cm to 4x5inch) for Horseman medium format camera. Cosmetically it has minor scratches and blots and some writings on the glass. The back is old version and has 2 small screws on the opening.
(needs to remove them when using with some models). Please check with your country. This item is in the category "Cameras & Photo\Film Photography\Film Backs & Holders". The seller is "astrosmith22" and is located in this country: JP. This item can be shipped worldwide.