Need help identifying maker

Hey guys! I bought this bracelet and I was told it was Native American. It’s got RRET engraved on the back of the cuff and I was wondering if anyone knew/knows if its anything significant!

It is a beautiful bracelet and would call it a Navajo piece. Lots of things are happening on the back of this bracelet. You have the RRET and I also see an M. I think of that RRET has a trader’s code that tells the buyer how much he paid, but usually you try to be discrete when making these marks. Also, it could be a collaboration piece, but you wouldn’t think to see that other M marking. I looked up RR and ET in my hallmark resources and couldn’t find a name that made sense. However, M is attributed to many different artists. Thanks for sharing.