Caracalla AE18 of Philippopolis, Thrace.  AD 198-217.

M AV KAI ANTWNINOC, youthful, bare head right.
FILIPPOPOLEITWN, coiled serpent with head right.

Varbanov 1583 var (obv. legend and bust type). Mionnet Supp. II, 1606 var (obv. legend). AK Coll. L49.

With permission of cngcoins.com, the AK collection sale, lot L49.