Caracalla, AE18 of Bizya, Thrace. 2.87 g.

M AVRHL ANTWNINOC KAICAP, bare-headed, draped, and cuirassed bust right.
BIZYHNWN, Hermes standing left, holding purse and caduceus. 

Varbanov 1470 (this coin). 
Near EF, dark brown patina. Very rare.

With permission of Numismatik Lanz. May 2001, lot 743.
Later resold by CNG, auction 88, Lot 739, Sept. 2011.