Metcalf, W.E. The Silver Coinage of Cappadocia, Vespasian-Commodus. ANSNNM 166. (New York, 1996).
Also see:Metcalf MN XXMetcalf SealsMetcalf BalkansHahn and MetcalfMetcalf CrusadersMetcalf JerusalemMetcalf CistophoriMetcalf Latin Imitative