This antique spring back reduces to 3x4 "and comes with its ground glass. To clarify, it It can be mounted horizontal or vertically on a camera. There is no makers name on it. It will fit a large format camera that can accept a back with outer measurements of 9 7/8 x 9 7/8''. The depth of the back is 7/16. There are a couple of light scuff marks on its exterior, but nothing major. A great antique reducing back.
