I have a Zeiss Ikon Maximar A with a roll film back, but no holders for cut film or glass plates. I would really like to use this with glass plates (as I may try my hand at making some). It takes 3-1/4 by 4-1/4 plates. The only holders I have seen on auction sites go for silly money. I was wondering if anyone has taken a shot at making such holders, and if so, how difficult it would be. I don't even have one to reverse engineer, so this is a long shot, but it would be cool to have 8 or so holders so I could really take the camera for a spin. I do have some sheet aluminum lying around. The holders are the same as the ones for the same sized Kodak Recomar - they look a lot thinner than say Graflex ones or ones that partly use wood.