Vintage Mexico Onyx & Sterling Bracelet This bracelet is a delicate beauty with detailed scroll design around a single circular onyx stone. Marked 925, Plata, with the artist's name or initials, Hecho, eagle stamp. Some of the markings are worn. Each link measures 1" by 3/4". The b bracelet length is 7-1/2". Push-in Box Clasp. Very good condition.