Caracalla, AE29 of Serdica, Thrace.
 
AVT K M AVR CEV ANTWNEINOC, laureate, cuirassed bust 
right, seen from the back. 
OVLPIAC CERDIKHC, Emperor, cuirassed, right hand raised, 
standing right on platform, between two officers, before him 
standing on the ground, three helmeted soldiers, (the first one smaller), holding shields and spears, three legionary eagles and 
standards behind them.

Ruzicka 348; Sofia 5685; Varbanov 2287 (this coin).