What mark??
I'm leaning more towards toe ring here a close up of the mark.The ends of a choke chain collar for dogs I think.View attachment 1335325
Interesting. Isnt the sideways "8" the mark for infinity?
a stainless bracelet next to one of the rings 22k acid I get the same reaction with the platinum acid turns it kinda blue idkStainless will test good for gold.