SEPTIMIUS SEVERUS.
  193-211 AD. AR Denarius
  (3.15 gm). Struck 210 AD.
  SEVERVS PIVS AVG,
  laureate head right / P M
  TR P XVIII COS III P P,
  Septimius on horseback left,
  brandishing javelin at
  prostrate foe who holds a
  sword and shield and is
  perhaps wearing a crown.
  RIC IV 238; BMCRE 24;
  RSC 556. Near EF. Very
  rare, only about a dozen
  recorded specimens. ($350)
  SOLD Commemorates
  Septimius attack on the
  tribes of Scotland. 

From bpmurphy.com, November, 2002, by permission of Barry Murphy.