Septimius Severus AE19 of Nikopolis ad Istrum.

AV K L CEVHROC, laureate head right.
NIKOPOLITWN PROC I, coiled serpent, four coils, with head
lowered right.

Varbanov 2492; cf Moushmov 949.

With permission of CNG cngcoins.com, from their 1999 auction,
lot 1354.