Watch List notes:

C. Antestius. 146 B.C. AR denarius (18 mm, 4.01 g, 8 h). Rome. C · (ANTE)STI behind, helmeted head of Roma right; below chin, X / The Dioscuri riding right; below, dog running right. Crawford 219/1e; Sydenham 411; Antestia 1. Near VF, toned. 

Ex RBW collection (not in previous sales); Garrett Collection, pt. III (NFA, 29 March 1985), 362.