The back looks just like the frontI don't think the hole was for wearing or hanging? Looks more like a hinge for opening or closing. What does the back side look like, is it flat?
It looks the same on both sidesDoes it sit flat on a surface, like to put a hot pan on?
Part of a sun dial/clock maybe?
I agree with the hinge--could it be a door knocker since it was brass ?I don't think the hole was for wearing or hanging? Looks more like a hinge for opening or closing. What does the back side look like, is it flat?
Nice!!! Congrats!!!