C. COELIUS CALDUS

AR denarius. 51 BC. 3.91 gm, 8h . Bare head of the Consul C. Coelius Caldus right; C. COEL. CALDVS before, COS below, tablet inscribed L D behind / Radiate head of Sol right; S above oval shield ornamented with thunderbolt behind ; round shield below chin. CALDVS III VIR before . Crawford 437/1b; Sydenham 892; RSC Coelia 5.

The ancestor of the monneyer ,also named Gaius Coelius Caldus was a prominent political figure in the late 2nd century BC.Governor of Hispania as proconsul,Consul in 94 BC.He also won significant victories over the Gallic Salluvii in 90 BC,as alluded to by the shields.
As TR P ( Tribunus plebis) he passed the 'Lex Coelia Tabellaria' . The new law allowed jurors serving on cases of treason to decide by secret ballot, rather than 'viva voce' ,(word of mouth.). A tablet would be inscribed with either 'L' (Libero, I absolve) or a" D" (Damno - I condemn).
Himself a monneyer,see RSC Coelia 2 and 3.