Antoninus Pius, AE of Pergamon, Mysia. 24.43 g. 

AV KAI TI AI ADRI ANTWNEINOC, laureate head right.
EPI STR KOUARTOY PERGAMOC TO B PERGAMHNWN, Asklepios, with
serpent-entwined staff, standing facing, head left, being 
crowned by Pergamos, naked, standing by him, holding sceptre.

RPC online 3187.1 (this coin); Von Fritze, p. 48 and pl. VI, 21.

Courtesy of Helios Auction 5, June 2011