Little Knifewing Inlay Pendant

I picked up this little inlay pendant. Any thoughts about the age? Or a possible attributed artist? I’m sure the stamped letters were done at the time it was made and are probably just the original owner’s initials or something.

Looks like Cowrie Shell, the brown background. That might be a way to find the age…

I imagine it is turtle shell, which would put it before early 1970s. The silver is really smoothed out, whoever owned this seem to wear it frequently. I would agree that this could be the owners initials. Figuring out the artist is going to be difficult. Lots of pieces done int his style are attributed to a John Gordon Leak, but some argue that this artist never existed. Whoever made the piece it is good and you should keep it.