Watch List notes:

Antoninus Pius (138-161), As, Rome, AD 145-161; AE (g 10,91; mm 26; h 12); [ANT]ONINVS AVG PI - VS P P TR P COS III[I], laureate head r., Rv. S P Q R / OPTIMO / PRINCIPI / S C, in oak wreath. RIC 827a; C 791.
Dark patina, high relief, extremely fine.