Augustus, Silver Denarius, 27 BC - 14 AD (17.28mm, 3.82gr)

Augustus, 27 BC - 14 AD.
Denomination: Silver Denarius
Date: circa 2 BC-AD 4 
Mint: Lugdunum
Dimensions:  3.82grams, 18.21 mm(approx 3/4")
Obverse: CAESAR AVGVSTVS DIVI F PATER PATRIAE, laureate head of Augustus right. 
Reverse: AVGVSTI F COS DESIG PRINC IVVENT, C L CAESARES below. Gaius and Lucius standing front, each with hand resting on round shield, a spear, and in field above, a lituus right and simpulum left ("b9" formation). 
Reference: RIC 207; BMC 533; RSC 43; Sear 1597. Nice very fine.
FT-1032
David R. Sear Certificate of Authenticity: 502/CO/RI/CY/CN

Lituus- a curved augural staff, or a curved war-trumpet
Simpulum- was a small vessel or ladle with a long handle from the Roman era, used at sacrifices to make libations.