Want to Buy WTB 2 X 3 roll film holder for Graflex 2 X 3 RB SLR.

Looking to buy a 2 X 3 inch Graflex roll film holder that will fit the Graflex 2 X 3 RB single lens reflex. This is the one that says Graflex on it (not Graphic) and has a shallow groove on the back plate rather than the 2 raised ridges which are on the Graphic back.