Caracalla, AE20 of Pellene, Achaia, Peloponnesos. AD 198-217. 3.79 g. 

..AYR ANTWNEINOC, laureate head right.
PELLHNEWN, Dionysos, naked, standing left, holding kantharos and thyrsos.

BCD Peloponnesos 614; Gress 871. 

Very rare.

With permission of cngcoins.com, auction 394, Lot 362. 
Sold for $240.