Mysia, Pergamon AE (Bronze, 3.09g, 15mm) ca 133-27 BC.
Obv: Helmeted head of Athena right, helmet decorated with star
Rev: Owl, with wings spread, standing right, head facing, on palm branch; ΔI-O across central field.
Ref: Von Fritze, Pergamon 26 var. (control letters); SNG France 1905-29 var. (same); SNG Copenhagen 383-92 var. (same); BMC 190-204 var. (same);