I picked up an older one on FB marketplace last winter (Wilson 1JR). I looked at pictures of several and waited until I saw one that had all of the weights, a bunch of anvils and stuff, and then met the guy and brought my stuff to test it. He told me it worked and was accurate, but he was using a C block with the B weight stack and a B indenter, so he had no clue how to use it. I had read up on them a bit, so I found the correct indenter and did the full weight stack. Once I got the correct weight stack on it, it was readying 2 hrc low on blanks I had professionally heat treated and the HRC test block, so it was in the ball park. The indenter was chipped, so I picked up a cheap one online for $23. Got it home, read through the manuals, adjusted the dash pot speed, adjusted the dial levers (should be done after transporting) and it pretty much is dead on my 2 HRC test blocks and blades I had Bos Heat treating heat treat for me. Between the indenter and tester itself, I paid $350. It also came with a few manuals and books about older testers, so I scanned those to PDF files since they go over how to adjust it and what it needs.
It's an open model, so I typically remove the weight stack if I am not testing anything for a while to reduce the wear on the edges of the levers and stuff. It's smaller and much lighter than other ones I have seen, which is great!
A buddy picked up an even older one on FB market place, but it doesn't have a weight stack and the anvil posts are a smaller version, so we have some work to get it up and running this winter! We are going to use PVC tube and shot to get the weight stack correct, he had some other anvils that will have their stems turned down and machined flat (remove corrosion).
