Egypt, King Ptolemy V (205-181 BC), Silver Didrachm, 6.8 gms., mint of Alexandria, diademed head of Ptolemy I, wearing aegis, right, rev. eagle standing left on thunderbolt (SNG Lockett 3434; cf. BMC pl. XXV, 9), very fine, grey-black patina

Details
Egypt, King Ptolemy V (205-181 BC), Silver Didrachm, 6.8 gms., mint of Alexandria, diademed head of Ptolemy I, wearing aegis, right, rev. eagle standing left on thunderbolt (SNG Lockett 3434; cf. BMC pl. XXV, 9), very fine, grey-black patina