So me and a friend were cleaning out a house that was abandoned and in the garage we came across a model 35-0020 Allen Diagnostics machine in excellent condition almost like it was left in time and forgotten about only thing was dust built up but a wipe down and looks brand new. Well I don't know anything about this it came with the Manuel and even an old test report sheet. If anyone knows anyone into old antique equipment maybe for restoration or a collector that would be awesome I will upload photos of the machine when I get home but here's the Manuel