I purchased this bracelet at a flea market in Berlin. It is handwrought and nicely made. The back is signed with a hand-engraved mark of CR with some kind of symbol (I thought it was a menorah, but it only has 6 stems). Because I purchased it in Germany, I am guessing it is a German piece but it might be some other European country. It seems like a mid-century piece but possibly a bit earlier.