Bracelet and ring

I have a silver and turquoise bracelet marked “RT” and a silver and turquoise ring marked “PR”. They were bought for me by my mothers Ex husband back in 1976–he took me to a place and told me to pick out a couple pieces during their divorce. I was only 12 at the time—but have been curious about them ever since.

We need pictures. Sometimes several artists used the same letters or combination of letters and their particular appearance is what helps us to tell them apart.