ANC156118 Alexander the Great coin, minted by Ptolemy I in Egypt during the Hellenistic era by Egyptian, (4th century BC); Location Unknown; (add.info.: Ptolemy I (c.367-283 BC) ruler of Egypt (323-283 BC); coin shows the deified Alexander wearing the horns of Ammon in reference to Alexander\'s visit to the shrine of Ammon at the Siwa Oasis where he was greeted by the priests as the son of Ammon and thus the rightful ruler of Egypt; Ammon was understood by the Greeks as the equivalent of Zeus and the deity was known in the Hellenistic period as Zeus Ammon;); Ancient Art and Architecture Collection Ltd.; Egyptian, out of copyright.