Are those 2 pieces that are folded over supposed to be like that? To me it looks like they should be straight.
This is going to be a tough nut to crack..lol
I think it was just used as a key ring/holder - or a piece of copper art maybe....
That hole on top makes me think it might have been attached to something, when it was new, polished and in pristine condition it must have looked quite smart... Maybe just a piece of old ornamental jewelry.
was this found at a beach or dam?