Macrinus, AE28 of Nikopolis ad Istrum, 217-218 AD, Legate 
Agrippa. 

AV K OPPEL CEVH MAKPEINOC, laureate, cuirassed bust right.
VP CTA AGRIPPA NIKOPOLITWN PROC ICT, coiled serpent with
radiate head right.

Varbanov 3367 (this coin).

Sold by Gorny & Mosch, auction 2002, lot 1605.