ANTONINUS PIUS; AE AS of 151 AD,Salus Reverse

     Antoninus Pius, 138-161 AD; AE AS of 151-52 AD; Obv: Laureated
     head right. (TR P XV) Rev: SALVS AVG SC, Salus standing left,
     feeds serpent coiled around altar. RIC.900, aVF/F with dark brown
     patina.