Watch List notes:

Antoninus Pius (138-161), As, Rome, AD 151-152
AE (g 10,34; mm 26; h 6)
ANTONINVS AVG - PIVS P M TR P XV, laureate head r., Rv. SALVS - AVG COS - IIII, Salus standing l., holding rudder on globe and feeding snake coiled round altar. RIC 900; C 729.
Dark green patina, good extremely fine.