Diadumenian as Caesar. AE 30

Diadumenian as Caesar; 217-218 AD, Sinope, Paphlagonia, ca. 215/6 AD, AE 30, 16.07g. RPC-V.3, ID 84437, Rec 144a (1 spec). Obv: M OPEL DIADVMENIANV[S CAES] Bare-headed, draped, and cuirassed bust r. Rx: C I F SINOP ANN CCL-XI, Serapis seated l. extending hand over Cerberus and resting on scepter. Ex Curtis L. Clay Collection; Ex Munz Z. Koln 48, April 1983, lot 81.. EF