Watch List notes:

Severus II. As Caesar, AD 305-306. Æ follis (9,51 g). Ticinum mint, struck AD 306. Laureate head right / Mars advancing right, holding spear in right hand and trophy over shoulder. ST in exergue. Dark-brown patina., RIC VI 60a, Grade: 1+, Purchased from Oslo Mynthandel in late 1990s