McAlee 321; CRS 349/149 (but with CAE, instead of CAES); Howgego, 'Greek Imperial Countermarks', no. 245 (for countermark).
Voorzijde: laureate head of Otho, facing right. Below, countermark: Athena standing right, holding spear and shield. IMP. M. OTHO. CAES. AVG ; Achterzijde: SC within circle, laurel wreath around.