Large Ring Marked SAMMIE

Anyone ever seen or heard of this smith? It is a big chunky ring. 25 grams. Size 10 3/4. Thoughts?

This is a nice ring. Lots of times this ring shank is made by a different artist than the one who decorates the top. I couldn’t find this hallmark, sorry. I showed the piece to another guy at the shop and he thinks Navajo, but I wouldn’t be surprised if this is Zuni.