Need help identifying a hard-to-read hallmark - Navajo?

I acquired this pendant a while back and cannot figure out the hallmark. I’m thinking it may be Navajo but I would like to know the age and maker. Any help is appreciated.

This is a pretty pendant with a piece of Sleeping Beauty Turquoise. I don’t believe it is handmade. If you will look at the sterling and artist hallmark you will notice it is not stamped in, but rises above the silver. This is a cast piece, could be at a local manufacturer that finishes with Native American labor.