Attica, Athens AR Tetradrachm 166-57 BC

Attica, Athens AR Tetradrachm 166-57 BC
15.57g. 31mm. VF+/XF. Obv. Head of Athena Parthenos right, wearing triple-crested Athenian helmet. / Rev. Owl standing right, head facing, on prostrate amphora; Greek letters to left and right; figure to right. SG1 2555 var.