Graflex R.B. Series B Revolving Back 2¼x3¼ Camera serial number 372694. This camera was built as a part of an order of only 1000 on 12/5/1945 and is in very good condition. Please see photographers for details. All buttons, levers, knows, and latches appear to function as they are supposed to. I did not test the camera with film, but I did focus it on a ceiling light (pictured) and clicked the shutter. That is as far as the unit was tested. Because of its age, this is being sold "as is."