COIN (ROMAN)
Silver Roman Republican denarius of the moneyer C. Maianius Mint or Rome, 153BC.  RRC no. 203/1a

Nothing is known about C. Maianius.  This was a large issue with 89 obverse dies and 111 reverse dies.  However, this is one of the earliest Roman coins to be found in Britain.

Ruler: Republic
Moneyer: Maianius, C.
Denomination: Denarius (Roman Republic)
Material: Silver
Mint: Rome
Obverse: Helmeted head of Roma right; behind, X; banker's mark(reversed C) on cheek
Reverse: Victory in biga (two horse chariot), whip in right hand and
reins in left; below, C.(MA ligate I AV ligate I)
Reverse legend: C.(MA ligate I AV ligate I)
Dated: -153.0 to 
Diameter (mm): 17.0
Thickness (mm): 1.0
Parish: Restricted Access
District: North Kesteven
County: Lincolnshire
Region: East Midlands
Place known as: Sleaford
Discovery method: Metal detector
RRC reference: rrc-203.1a