I've had this for some time, and it's been on my desk holding pens for it's tenure here, but I'm certain that wasn't it's original purpose. I'm not posting this as a teaser where I actually know what it is, I genuinely have no idea. It was in a box of random junk at a flea market, and the seller didn't know anything more about it, he wasn't sure where he got it, probably an estate sale. The box contained nothing else that was easily identifiable as related.
Height is about 1.6" diameter about 2.4" center hole is 1.050" and the 9 holes around the perimeter are .480". The material is bronze or brass.