Watch List notes:

M. Herennius, Denarius, Rome, 108 or 107 BC; AR (g 3,93; mm 17; h 3); Head of Pietas r., wearing diadem; behind, PIETAS, Rv. One of the Pii fratres (Anphinomos or Anapias) running r., bearing his father on his shoulders; behind, M HERENNI; before, control mark. Crawford 308/1b; Herennia 1; Sydenham 567a.
Cabinet tone, about extremely fine.