Ancientcoinart.com, lot No 9161. Sold for $145, 2006. 

Caracalla AE30 of Trajanopolis, Thrace. 

Obv: AVT K M AVPH ANTWNEINOC, laureate head right 
Rev: TPA-IANO/POLEITWN, Cybele riding right on lion, holding scepter & drum.

_trajanopolis_Varbanov_2802