TETRADRACHM 285-246 BCE
SILVER TETRADRACHM (23MM.)
PTOLEMAIC PERIOD, PTOLEMY II 285-246 BCE.
Obverse: Head of Ptolemy I;
Reverse: Eagle standing on a thunderbolt.
Another great achievement during Ptolemy II’s reign was the construction of the Pharos, a light-house reaching 440 ft. above a peninsula in Alexandria Harbour with a perpetual fire to guide the ships along the coast – one of the Seven Wonders of the Ancient World.