Vintage circa 1960 poison ring is sterling silver and was made in Mexico. The Taxco stamp is barely 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 8. The cabochon stone is Mexican green turquoise. It still opens with ease.

There are some condition problems with the inside wall of the poison compartment. The metal bar that makes up the cup in the top of the ring only goes half way around. This does not in any way keep the poison compartment from closing. It fits tightly enough into the ring base to keep the top locked in place. The hinge is still in good shape and functional. Keep in mind with any poison ring, the more you play with it, the more likely the top can come lose. 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.