Vintage circa 1960 poison ring is sterling silver and was made in Mexico. There is no stamp visible. This company was known for making these great poison rings and other biker and hippie sterling silver jewelry in that decade. This one is adjustable and is currently a size 6. 5, but could probably be sized up or down one size, fitting a small to average woman's finger. The cabochon stone is purple amethyst. It still opens with ease and locks with ease. The hinge is still in good shape and functional.

If you must open and close it, do so with care and slowly. Also with any adjustable ring, be conscience of the overlap of the ring shank as to not catch on things.

This item is sold from a vintage boutique in Www.Etsy.Com/Shop/Necromancenola.