Sterling silver Uncas antique onyx black stone ring 6 vintage 6.25 925

I love offers! **Added pics after shining it with a silver cloth to remove most tarnish** Absolutely gorgeous, delicate antique sterling silver ring by Uncas. I am guessing this is Onyx or obsidian. I have no way of verifying the type of stone it is. There are some subtle surface scratches to the face of the stone, but very hard to see you when wearing. Nearly impossible to photograph them as you can see. They are superficial at best. This ring is very old, tarnished, and bent up slightly, as pictured. This ring is approximately a size 6, which is my educated guest based on my own ring size. It fits me perfectly, but it’s not tight so it could also be a 6.25 or so. This ring is addictingly satisfying to wear , very comfortable, as if it is a natural extension of one’s finger. It certainly gets lots of compliments. From a clean, nonsmoking home. Thanks!