Caracalla AE22 of Samos, Ionia. AD 198-217. Bronze (AE; 22mm; 5.69g. 

AYT K M AYR ANTWNEINOC, laureate head right.
CAMIWN, River-god Imbrasos reclining left, holding reed and resting against cornucopiae and urn from which water flows. 

Falter 416; AK Coll. L81a.

With permission of cngcoins.com, the AK collection sale.