early Sigi Pineda hinged clasp bracelet
silver sterling 925 and black onyx.
marked - sigi taxco, eagle 36 {circa 1948-1955}, sterling hecho en mexico (in a circle).
numbered 310 
1 6/8 wide - 4.45cm
inside diameter 2” -5,08cm
interior circumference 6”1/4 -15,875cm 
weight 43.5 gram.