Antoninus Pius, 138-161 AD. AE Sestertius, Rome mint, struck 145-161 AD. 23.14 g.

ANTONINVS P P TR P COS IIII, laureate head right.
S-C across fields, Mars, naked, walking right, holding trophy and spear. 

RIC 778; Cohen 751; BMCRE 1705.

With permission of Numismatica Ars Classica auction 46, Lot 579, April 2008.