Watch List notes:

Constantine I, 307 – 337. Aureus, Heraclea circa 315-316, AV 5.36 g. CONSTANTI – NVS P F AVG Laureate head r. Rev. SIC / X / SIC XX / SMHB within wreath at top of which small eagle in circle. C –. RIC 8. Alföldi 470. Depeyrot 3/1. Calicó 5190.
Rare. A superb portrait of fine style, almost invisible marks,
otherwise virtually as struck and almost Fdc

Ex NAC sale 46, 2008, 708.