COIN (ROMAN)
Very worn Roman Republican Mark Anthony silver denarius, legionary type, travelling mint, 32-31 BC.
The galley obverse is partially legible, but the reverse is almost flat with just an indication of the eagle in the centre.
RRC 544 
Ruler: Republic
Denomination: Denarius (Roman Republic)
Material: Silver
Mint: Moving with Republican issuer
Obverse: galley
Obverse legend: [ANT.AVG.II]IVIR R.P.C
Reverse: Eagle between standards
Dated: -32.0 to -31.0
Weight (g): 3.15
Diameter (mm): 17.5
Parish: Restricted Access
District: South Cambridgeshire
County: Cambridgeshire
Region: Eastern
Place known as: Little Wilbraham, Cambs
Discovery method: Metal detector