"Ptolemaic Kingdom. Ptolemy I Soter. As King, 305-282 B.C. AR tetradrachm (29.3 mm, 13.50 g, 12 h). Alexandria mint. Diademed head of Ptolemy I right with aegis, multiple bankerstamps / ΠΤΟΛΕΜΑΙΟΥ ΒΑΣΙΛΕΩΣ, eagle with closed wings standing left on thunderbolt; in left field, P / MI in monogram. Svoronos 252; SNG Copenhagen 69. Good F, dark patina and some green deposits obverse. "