COIN (ROMAN)
A silver Roman Republican denarius of uncertain moneyer dating to the period 200 – 50 BC (Reece Period 1). Quadriga reverse type. Mint uncertain.

No obvious text remains to aide identifying this coin further. 
Ruler: Republic
Denomination: Denarius (Roman Republic)
Material: Silver
Obverse: Laureate head right
Obverse legend: Illegible
Reverse: Quadriga right
Reverse legend: Illegible
Dated: -200.0 to -50.0
Weight (g): 3.4
Diameter (mm): 19.3
Completeness: Complete
Parish: Copmanthorpe
District: York
County: York
Region: Yorkshire and the Humber
Discovery method: Metal detector