PTOLEMAIC KINGS OF EGYPT. Ptolemy I Soter, 305-282 BC. Tetradrachm of 25 Obols (Silver, 28 mm, 13.91 g, 12 h), Alexandria, after 294. Diademed head of Ptolemy I to right, wearing aegis around neck; small Δ behind ear. Rev. ΒΑΣΙΛΕΩΣ ΠΤΟΛΕΜΑΙΟΥ Eagle with closed wings standing left on thunderbolt; to left, monogram of 'MI'. CPE 156a. SNG Copenhagen 48. Svoronos 201. Very rare. Graffito