COIN (ROMAN)
A silver Roman denarius of Augustus dating to 19-18 BC (Reece Period 1).  DIVVS IVLIVS reverse type depicting a comet with eight rays and a tail.  Spanish mint. RIC I (2nd ed.), p44, no.37a. 
Ruler: Augustus
Denomination: Denarius (Empire)
Material: Silver
Mint: Rome
Obverse: Bust facing right.
Obverse legend: CAESAR [ ... ]
Reverse: Comet with eight rays and a tail.
Reverse legend: DIVVS IVLIVS
Dated: -19.0 to -18.0
Weight (g): 3.16
Diameter (mm): 17.7
Completeness: Complete
Parish: Restricted Access
District: Wiltshire
County: Wiltshire
Region: South West
Place known as: Grimstead
Discovery method: Metal detector