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

AUT K L CEPTI CEUHROC PER, laureate, draped, cuirassed bust right.
OULPIAC PAUTALIAC, the serpent Glykon coiled, with radiate
head right and with fish-like tail. 

Ruzicka 397. Varbanov 4806

Courtesy of Helios Auction 5, March 2011