Antoninus Pius (138-161). AE As, Rome mint, 145-161 AD. D/ ANTONINVS AVG PIVS PP TR P COS IIII. Laureate head right. R/ SPQR/OPTIMO/PRINCIPI/SC in oak-wreath. RIC 827 a; C. 791. AE. g. 11.88 mm. 27.50 Green brown patina. Gently smoothed and tooled. Good VF.