Caracalla, AE 30 mm of Serdica, Thrace. 15.20 gr.
 
AVT K M AVP CEV ANTWNEINOC, laureate head right. 
OVLPIAC CERDIKHC, coiled serpent with multiple coils, neck bent, 
head left. 

Ruzicka 362.

With permission of Nomos AG Auction 6, May 2012.