Antoninus Pius AE Sestertius, 30-31mm; 24.87g. AD 152-153. 

ANTONINVS AVG PIVS P P TR P XVI, laureate head right.
COS IIII, Mars standing right, helmeted and in military 
dress, holding vertical spear and resting left hand on shield. S-C across fields.

RIC 901; BMCRE 1919; Cohen 206.

With permission of cngcoin.com, the AK Collection.