Watch List notes:

C. Porcius Cato. 123 B.C. AR denarius (19 mm, 3.70 g, 2 h). Rome mint. Helmeted head of Roma right; denomination behind / C · CAT[O] below, ROMA in exergue, Victory, holding whip and reins, driving galloping biga right. Crawford 274/1; Sydenham 417; Porcia 1. aVF, minor roughness on obverse.