Anglepoise type clamp/socket

[Tigercubrider]

I have one of those magnifiers for close up work that I acquired with a clamp to fit to a desk.
Kind of like a G clamp with a round socket and the magnifier has a rod like pin.

somewhere I still have the clamp…. But where?….

can you buy them separately ? Ideas?

 

[Tigercubrider]

Edit…

just found one. I will measure what I have