Caracalla, AE27 of Nicaea, Bithynia. AD 198-217. 11.24 g. AYT K M AYR ANTWN AYG, laureate head right. Countermark of Nike right behind head. NIKAIEWN, Demeter standing left, holding corn-ears and torch. RecGen 417 (this coin); Berlin 18221087. Image courtesy of the Berlin collection.