I found out a little about where the belt is from.
The seller I purchased from found it in an antique store in Ohio. The antique store had this information:
“….that belt came out of a very large collection of turquoise out of Martins Ferry. Their Dad was a world renowned photographer and spent a lot of time with Native Americans out west. They liked him so much he was allowed to photograph them. He did lots of trading with them so it is hard to tell age. I would say at least the 60’s.
My note: a photographer from Martins Ferry, Ohio, passed away in 2021. John Kuzma, Jr. I don’t know if he is the one that had the belt, but John did travel a lot and had a National Park Passport. I only knew him as a student I taught in 1970. He was a very likable kid, and worked in his dad’s photography business back then.“
I did a bit of googling and found an old advert for the photography business, as well as the obit for Jr. I will continue to search about (I assume) Kuzma Sr., but there’s a bit of info for now.