CALIGULA, A.D. 37-41. AR Denarius (3.83 gms), Lugdunum Mint, ca. A.D. 37.RIC-2; BMC-3. "C CAESAR AVG GERM P M TR POT COS" Bare head of Caligula facing right; Reverse: Radiate deified bust of August facing right, flanked by two stars. The presence of stars flanking the deified bust of Augustus is possibly a representation of Halleys comet. Early in the reign of Augustus when Halleys comet passed over Rome, Augustus claimed it to be the spirit of Julius Caesar entering the heavens. Caligula chose to use the same symbolism Augustus used for his predecessor, in honoring Augustus with this deification issue. Halleys comet over the years has been associated with several historical events, including the battle of Hastings. Some theologians even believe the appearance of Halleys comet may explain the biblical story of the "Star of Bethlehem". RARE, especially so in this state of preservation. Good metal quality, well centered, nice style on both portraits. A choice and interesting type.