Watch List notes:

Antoninus Pius (138-161), Denarius, Rome, AD 145-161; AR (g 3,32; mm 18; h 6); ANTONINVS - AVG PIVS P P, laureate head r., Rv. COS - IIII, winged thunderbolt on draped throne. RIC 137; C 345.
Lightly toned, extremely fine - good extremely fine.