Caracalla AE19, of Serdica, Thrace. 

Obv: AVT K M AV CEV ANTWNINOC, laureate head right 
Rev: CERDWN, Thanatos (Eros) right, leaning on inverted torch. 

Moushmov 4829; Varbanov 2085.

with permission of cngcoins.com, Jan 2014.