Watch List notes:

C. Publicius Malleolus. 96 B.C. AR denarius (18.7 mm, 3.82 g, 5 h). Rome mint. Helmeted head of Mars right; mallet above, monogram below chin / Warrior standing left, right foot on cuirass, holding spear and leaning on tabella inscribed CM/(AL) - Π, retrograde and sideways; trophy in left field. Crawford 335/3f; Sydenham 615b; RSC Poblicia 8. aVF. 

Ex D. Thomas collection. 

Crawford notes (Vol I, p. 335): "The tablet here is surely the tessera of a voter in a tribe whose name begins with P, recording a vote for a C. Malleolus."