Hello, This is my first post on the forum. I have a silver link bracelet marked Italy 925. Also has markings Pat Pend and PR Ex. I'm curious to know more about the piece. I think PR may be Parma but what is Ex? Any ideas of the age of the piece? Thank you for your help.
https://photos.app.goo.gl/zc49shX1okXKTKXF9

