Caracalla AE sestertius, AD 198-217. Rome, struck AD 213. 23.33 g. 

M AVREL ANTONINVS AVG BRIT, laureate, cuirassed bust right.
P M TR P XVI IMP II around, COS IIII P P / S S below, view of the Circus Maximus seen from the Forum Boarium: arcade of fourteen arches with a large triumphal arch at each end with shrines at the sides; spina with central obelisk on the left, with a fountain and an srchway surmounted by a racing biga to left, a trophy, a fountain and equestrian statue of Trajan to right.

RIC 500b; Cohen 236; BMC 251.
Very rare 

With permission of Numismatica Ars Classica auction 51, Lot 355, March 2009.