Watch List notes:

Constantine I, as Caesar, 306-309. Follis (Bronze, 28 mm, 8.67 g, 7 h), Aquileia, 306-307. CONSTANTINVS NOB CAES Laureate and draped bust of Constantine I to right, seen from behind. Rev. VIRTVS AV-GG ET CAESS NN / AQΓ Mars advancing right, holding spear in his right hand and trophy over his left shoulder. Paolucci & Zub 219. RIC 93. Very rare. Somewhat smoothed and with minor weakness on the reverse, otherwise, about very fine.