Septimius Severus AE31 of Pautalia, Thrace. AD 193-211. 16.23 g. Magistrate Ael. Oneratus.

AYT K L CEPTI CEYHPOC P CEBA, laureate and cuirassed bust right.
HGE K AILIOY ONERATOY OYLPIAC PAYTALIAC, coiled serpent with head right between two trees. 

Varbanov 4652; Ruzicka 263. 
Very Rare. 

With permission of cngcoins.com, auction 88, Lot 750, Sept. 2011.