Alexander the Great silver Tetradrachm minted in Amphipolis circa 336-323 BC
Obverse: Head of Hercules in lion's skin headdress
Reverse: Zeus seated on throne holding eagle. Janiform-head mintmark in left field.
Custom mounted into a sterling silver bezel pendant with a 14k yellow gold bail. Measures approximately 1.5 inches from the top of the bail to the bottom of the bezel, 1 and 1/8th inches across widest point.