Caracalla. 198-217 AD. AE 28, 12.12g. Galatia, Ancyra. 

Obv: ANTWNINOC PIOC AVG, laureate, cuirassed bust left.
Rev: MHTROPOLEWC (MHT ligate) ANKVRAC, Triform Hekate 
standing, wearing kalathos on each of her three heads, 
holding a patera, two torches, and three other uncertain 
objects in her six hands. 

Possibly only the second specimen known after that published 
by Imhoof-Blumer from his own collection: not in BM, SNG Paris, SNG von Aulock, Lindgren, Mionnet. 

Imhoof-Blumer, "Zur griech. u. röm. Munzkunde", p. 228, 6, pl. VIII.15 (same rev. die). Cf. SNG Aulock 6175-6 (same 
obv. die) and 6194 (reverse type for Gallienus). VF.
Ex Dr. Stephen Gerson Collection. Ex CNG 64, 24 September 2003, lot 607. 

Gemini Numismatic Auction #6, January 10, 2010, lot 635