Rick sent me a PM asking me to comment on the object. I'd already read the discussion but chose not to comment because I didn't have any "conclusive" ID-info to add to it. But because he requested my thoughts, here they are.
It definitely is not a rifle-sling swivel. Note the"swell" at the center of this object's loop. A rifle-sling swivel's loop is lozenge-shaped, because the sling (strap) is flat-bodied.
When somebody suggested the object is a coffin-handle, I almost replied that it is too small for that purpose.. but didn't because another posted said it before I could. In addition to its small size, the "swell" in its loop indicates it is intended for two-finger pulling.
Although the photos posted by Creskol are helpful (and worth saving for future identifications), I note that none show a loop which is attached to a flat strap, as this loop is.
Being attached to the end of a flat strap suggests to me that it was intended for pulling straight-upward, rather than "toward you" like a doorhandle or drawer-pull is used. You'll notice that the brass strap shows a broken-through screwhole, which is about 1.5-inches away from the strap's end where the handle is attached. Thus, pulling the handle "toward you" with much force would tend to bend the end of the brass strap outward from whatever it was screwed onto. Repeated forceful pulling "in the wrong direction" would eventually cause metal-fatigue to the brass strap, causing it t break at the screwhole attachment-point. I suspect that that is how this object got broken off whatever it was attached to.
As I said at the begining, I realize that these observations do not provide a conclusive ID of the object. I've contributed them because I was asked to do so by the object's finder. I can only hope they might lead somebody to the conclusive ID.