Watch List notes:

Constantine II. As Caesar, A.D. 317-337. Æ follis (20 mm, 3.50 g, 5 h). London, under Constantine I, A.D. 321. CONSTANTI-NVS IVN N C, radiate, draped and cuirassed bust of Constantine II left, seen from behind / BEATA TRA-NQVILLITAS, three stars above globe atop altar inscribed VOT/IS/XX in three lines; P-A//PLON. Cf. RIC 216 (c3). Unrecorded bust type for the issue. Dark brown patina. Good very fine.

From the Maple Leaf Collection.

This exact bust type is not listed in RIC (vol. VII, p. 111): ""seen from back"" is C2l; the type is only listed as C3l.