Found this little gem in a box of lathe tooling for my old Victor 1640. It was rusted over and froze. I put it in the parts washer overnight, which enabled me to disassemble it. A little more soaking and wire brushing and it cleaned up pretty good. Painted it up and hung it. Works smooth now. Will make a new friction lock or re-knurl since it looks like this one was obviously being asked to work well beyond its capabilities.