Help in identification of these pieces, Andrew Dewa?

Hello. I love the work on the buckle. I have something which has a similar pattern. with a cast appearance tho. the etched in letters are not something I could find. any ideas. Your Mothers book sounds interesting, do you think you might check this etching? due to the pattern I had guessed Navajo… as in rug pattern. I see Zuni in it now. Many thanks.