Augustus, with Divus Julius Caesar. 27 BC-AD 14. Fourrée Denarius (19mm, 3.24 g, 6h). Rome mint; M. Sanquinius, moneyer. Struck 17 BC. Bare head of Augustus right / Youthful, laureate head of deified Julius Caesar right; above, a comet with four rays and a tail. Cf. RIC I 338; cf. RSC 1 (Julius Caesar and Augustus). Toned, encrustations, breaks in patina. Good Fine.
The idealized head on the reverse has been variously identified as a deified and rejuvenated Julius Caesar, Augustus himself, or a male personification of the dawning Golden Age. The presence of a comet above the head, likely intended as the "Julian star" that appeared shortly after Caesar's death, argues for the first identification.