Marcus Aurelius, AE19 of Augusta Trajana, Thrace. AD 161-180. 4.27 g.

AY KAI M AYR ANTWNINOC, bare head right.
AYGOYCTHC TRAIANHC, coiled serpent, bearded and with fish tail, coiled left on garlanded altar.

Varbanov 844.

With permission of Numismatik Lanz, auction 97, lot 644.