Nice finds!

FYI: Finger armor as those rings are called, are almost purely decorative, although some of them would be quite damaging in a fight. My better half wears them and I can attest to the fact that even though most are cheaply made they are quite expensive. There's a few on the market made from sterling that tend to be better quality and far more expensive, some are a lot heavier duty, and a very few are even made to be actual weapons if used in a fight, although they are often illegal. My girl had one set for her left hand that was more gauntlet as it was attached across the knuckles, covered the fingers and thumb, back of the hand, and had 1 inch razor sharp knife blades at the fingertips. (Yeah, that one was very expensive and the first one to get stolen)

Side note: We also found out while filing the police report how messed up our laws are here. Weapons grade finger armor can get a wearer (if used in a fight) up to 7 years in prison. If you use a gun, likely get less than 2 years. So just keep it in mind your local laws if you find one of the more weaponized ones and have it on you. Possession (These, brass knuckles, blackjacks, etc) often gets far more time than a concealed firearm...go figure