Watch List notes:

Constantine II. As Caesar, AD 316-337. Æ Follis (20mm, 3.59 g, 6h). Treveri (Trier) mint, 1st officina. Struck AD 317. Bareheaded, draped, and cuirassed bust right / Sol advancing left, extending arm and holding whip; T-F//•ATR. RIC VII 147 var. (holding globe). EF, brown patina. Very rare.

From the Olav E. Klingenberg Collection. Ex Classical Numismatic Group Electronic Auction 271 (11 January 2012), lot 543.