Guess The Gadget

I love a mystery. I suppose it an interest in the unknown that draws me to estate sales. No matter the sale, I can guarantee I can find something odd or out of place. The image shows exactly that.

Found at a sale in South Kent, I plucked it out of a box of medical items where it definitely didn’t belong. ‘ll admit that sitting on my workbench, it is in no less of an odd place. Or, at least that will be it’s label unless I can find out what it is.

What are your thoughts? It looks like something, of course, but there are no marks, letters or numbers to reference even when it was made. It is brass and heavy for its size.

Take a look at a few more angles here, and see if you can figure out this mystery, so I can get to the next one.