Hi I've recently purchased an old Russian plate camera (can't even tell who it was made by). I think it may date from the 1920's. It's in full working order and comes with some film plates. I'd like to use it but I don't know if you can get film for it. The area in the film plate where the film goes measures 9 X 12 cms. I've seen on internet that getting sheetfilm of 4x5 inches isn't a problem but that's too big I think. Does anyone know if film is available for this camera?