Bolo ties

Can anyone help me find out these bolo ties. The amethyst one was from a ring of mymom’s. There is initials & numbers inscribedon the back. .

Not sure about the amethyst piece, but if I had to come up with something it might be SS for sterling silver, HM for handmade and the artist did the circle with an e. On the bottom bolo that is PAT. PEND I believe. No indication of artist mark.