Caracalla, AE18 of Istrus, Thrace.

AV K M AV ANTWNIN, laureate, draped, cuirassed bust right.
ISTRIHNWN, Dionysos standing half-left, holding thyrsos
and pouring wine from kantharos to panther at feet left.

Moushmov 174; Varbanov 638 corr. (this coin).

Courtesy of Dr. Busso Peus Nachfolger, Auction Nov 2002.
Added Aug. 2011.

Note; Varbanov describes Dionysos' thyrsos as being
eagle-tipped, but it is just the position of his hand
which look like the wings and back of an eagle.