Denarius - Hadrian P M TR P COS III, Mars

Hadrian's third consulship began in 119 AD and he held the title continuously thereafter without renewal — making COS III a broad but fixed chronological anchor rather than a precise dating tool. These early issues of his reign reflect a mint transitioning out of Trajanic production habits, and the Mars types specifically are associated with Hadrian's early efforts to cultivate military loyalty after the executions of four senior senators in 117 AD, a scandal that shadowed the opening years of his principate and required considerable political repair work.