PTOLEMAIC KINGS of EGYPT. Ptolemy I Soter. As satrap, 323-305 BC. AR Tetradrachm (27.1mm, 17.2 g). In the name and types of Alexander III of Macedon. Memphis or Alexandreia mint. Struck circa 323/2-317/1 BC. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; rose in left field, ΔI below throne, O to left of scepter.