Augustus ruled 27 BC - 14 AD
AR denarius 3.7542 gm, 20.7 mm
Spain 19-18 BC
1. Sutherland, C. H. V. 1984. The Roman Imperial Coinage: Volume 1. From 31 BC to AD 69. Page 44 #37a and Plate 2 #37a. London: Spink and Son Ltd. 2. Mattingly, Harold. 1923. Coins of the Roman Empire in the British Museum: Volume 1. Augustus to Vitellius. Page 59 #323 and Plate 6 #6. London: Spink & Son Ltd.
Obverse
Augustus, laureate, facing right
CAESAR AVGVSTVS
Reverse
Eight-rayed comet, tail up
DIVVS IVLIVS