Watch List notes:

ROMAN EMPIRE; Constans. 337-350 AD. AR Siliqua (3.12 gm; 21 mm). Treveri (Trier) mint. Struck 347-348 AD. Pearl-diademed, draped, and cuirassed bust right / Victory advancing left, holding wreath and palm; TR. RIC VIII 176; RSC 152a. Well struck on a nice full broad flan. Well centered. Choice Good EF with some luster. Rare.