Caracalla, AE30 of Serdica, Thrace. AD 198-217. 21.16 g.

AVT K M AVRH CEV ANTWNEINOC, laureate, draped and cuirassed bust right.
OVLPIAC CERDIKHC, Apollo Iatrus standing facing, head left, 
holding serpent-entwined staff; Eros or infant Askleios 
standing left at his side, holding caduceus. 

Moushmov 4807; Ruzicka 173; Varbanov 2142 var (AVRH). 

With permission of cngcoins.com, Nov. 2006 and Oct. 2015.
Estimate: $200.