COIN (ROMAN)
An Early Roman silver denarius of the Republican period, struck by the moneyer Cn. Gellius at Rome dating to 138 BC. See: RRC 232/1.

Measurements: diameter 19.05mm, thickness 1.30mm, weight 3.21g.

Three other examples are recorded on the PAS database including: LANCUM-766141 and DENO-8EBFD4.
Ruler: Republic
Moneyer: Gellius, Cn.
Denomination: Denarius (Roman Republic)
Material: Silver
Mint: Rome
Obverse: Helmeted bust of Roma facing right with X behind, within laurel wreath border
Reverse: Warrior or Mars in a quadriga (four horse chariot), holding shield and grasping captive
Reverse legend: CN [...]
Dated: -138.0 to 
Weight (g): 3.21
Diameter (mm): 19.05
Thickness (mm): 1.3
Completeness: Complete
Parish: Euston
District: St. Edmundsbury
County: Suffolk
Region: Eastern
Discovery method: Metal detector
RRC reference: rrc-232.1