Watch List notes:

M. Sergius Silus. 116-115 BC. AR Denarius (17mm, 3.73 g, 5h). Rome mint. Helmeted head of Roma right; [mark of value] behind / Soldier on horseback rearing left, holding sword and severed head of barbarian; Q below. Crawford 286/1; Sydenham 544; Sergia 1a. VF, toned, granular surfaces, a few minor marks. The smaller and neater style.

From the Dr. Robert A. Kilmarx Collection.