Have owned several 4x5 Normas over the years. Each one differed by just a little when taken apart, obviously improvements were incorporated over the span of the camera. Whenever I worked on one. I would do it inside a 20x24 inch processing tray. Also had some 8x10 sheets of cardboard that were coated with several strips of double stick tape. It was easy to keep the parts in order of disassembly and write down notes next to the parts. The worst looking Norma I ever acquired was one that was in a Studio fire. Acquired it for very little money because it looked to be totally destroyed. Amazingly after cleaning up the large amount of smoke damage, everything on the camera worked just fine. On the other hand once acquired a front standard that looked to be in almost mint condition. When I finally got around to closely looking at it months later, I discovered that someone had tried to fix it and it was really only good for parts.