Watch List notes:

Pertinax, 193. 'Denarius' (Billon, 18 mm, 2.36 g, 11 h), a contemporary 'limes denarius', irregular mint. IMP CAES P HELV PERTIN AVG Laureate head of Pertinax to right. Rev. VOT DECEN TR P COS II Pertinax, togate and veiled, standing front, head to left, sacrificing out of right hand over tripod altar and holding roll in his left. Cf. BMC 24, Cohen 56 and RIC 13a (for prototype). Fine.