Marcus Aurelius AE16 of Miletus, Ionia. As Caesar under Antoninus Pius. AD 139-161.

AYRHLIOC KAICAR, bare head right.
MILHCIWN, Apollo Didymeus standing right, holding stag and bow. 

Mionnet III 789; Vienna GR17499; RPC IV online 3331. 

With permission of Numismatik Naumann Auction 43, Lot 665, May 2016