Spanish silver cob "piece of eight" two Reales minted in Mexico City, Mexico circa 1570 during the reign of Philip II.
Obverse: cross with lions and castles.
Reverse: Spanish coat of arms. Assayer initial “F”.
Custom set into a 14k yellow gold bezel pendant, measuring approximately 1 and 1/2 inches from the top of the bail to the bottom of the bezel, 1 and 1/8 inches across widest point.