Ancients. ROMAN EMPIRE: Caligula, 37-41 AD, AR denarius (3.52g), Lugdunum (40 AD), S-1808, C CAESAR AVG GERM P M TR POT, laureate head of Caligula right // DIVVS AVG PATER PATRIAE, radiate head of Divus Augustus right, strike 5/5, surface 4/5, edge mark, NGC graded choice VF, R.