THe pic i have is my full lathe with tooling the grinder is kinda small
in comparison but it is in the pic i have

It looks homebrew

a tube with a morot and a speed control switch (Multi position) to a
triple pulley to another to a tube containing the arbor to a grinding
bit (die grinder bit size)

I'll attempt a posting to the drop box



Do you have a picture that you could post to the drop box at
www.metalworking.com ?

Alternately, I have an original Atlas/Clausing TP grinder and can put a
picture of that on my web site but it will take me to the weekend to get to
it.

Mike