Caracalla AE27 of Ilium, Troas. AD 198-211. 

AV KAI M AV ANTWNINO, laureate, draped and cuirassed bust right.
ILIEWN, Athena standing right, holding spear and small Nike, shield at feet to left.	

Bellinger 243; McClean 7837; BMC 85; SNG Cop 434. 

With permission of Roma Numismatics auction 4, Lot 2269, Sept. 2012 (corr. obv. legend misread)