Septimius Severus, AE29 of Pautalia, Thrace. 16.47 g. 

AYT K L CEPTI CEYHROC PER, laureate, draped and cuirassed bust right.
OYLPIAC PAYTALIAC, Coiled serpent with four coils, forked tail and radiate head right. 

Varbanov 4806; Ruzicka 397.

With permission of Helios Numismatik auction 5, Lot 577, June 2010.