Egypt, King Ptolemy I (305-283 BC), Silver Tetradrachm, 15.8 gms., mint of Alexandria, as Satrap, 319-315 BC, head of Alexander the Great, wearing elephant's scalp and aegis, right, rev. Athena Alkidemos standing right, helmet and eagle on thunderbolt before (SNG Cop. 30; SNG Delepierre 3050, same dies), about extremely fine, small planchet fissures, attractive irridescent toning