Antoninus Pius, AE40 medallion of Pautalia, Thrace. 64.38 g. 

AYT KAI T AI ADRI ANTWNINOC, bare-headed, draped bust right.
HGEM POMPEI OYOPEICKOY PAYTALIWTWN, Dionysos, holding 
thyrsos, and Ariadne sitting right in a biga of panthers, 
being led by Herakles, a flute musician, a torchbearer, a 
thyrsos carrier and other attendants.

Mabbott 478 (this coin); RPC IV-1 online 10182.

Image from the Mabbott Collection, Schulman auction 64, lot 478, June 1969.