This is a 1940's amazing sterling cuff with an amethyst face in the center of an Aztec wonderland. Two figures with staffs guard this God. The blackening within the pattern adds depth. the initials look to be JBR and sterling Mexico. No eagle mark. The circumference is 7" and the width is 1 5/8" the head piece is ample at 1 1/8" high. In wonderful vintage condition and the original patina which can be shined up with a cleaning cloth.