Marcus Aurelius AE 17mm of Augusta Traiana, Thrace. 

AV KAI M AVR ANTWNEINOC, bare head right.
AYGOYCTHC TRAIANHC, river-god swimming right.

Varbanov 854.
Very rare

Courtesy of Antike Muenzen Auction, 2002. Restored and re-added,
Sept. 2013.