I don't know the exact term for this unit- magnetic starter?- but hopefully the pics will tell you all you need to know. I removed this assembly from my Nichols mill during the rebuild, and no longer need it as I'm using a VFD.
I have no idea if it works, it's a bit grungy but I don't see anything broken, burnt or obviously damaged. Needs paint.
Pretty much what you see is what you get. No idea what it's worth, so how's $50 and shipping sound?
If you need more info or a different photo, just ask. If you're interested, please email me at doc (at) docsmachine (dot) com