Antoninus Pius, AR tetradrachm of Alexandria, Egypt. Dated Year 7 (AD 143-144). 

Obv: (from top right) ANTWNINOC CEB EVCEB, laureate head right. 
Rev: Serapis, modius on head, seated left on high-backed chair, 
holding sceptre and extending right hand to Cerberus at his feet. 
Date L-Z across fields.

Milne 1749-1750; Emmett 1431.

With permission of TimeLine Auctions (www.timelineauctions.com), August, 2014