Watch List notes:

Constantine II. Gold Aureus (4.4 g), AD 317-337. Sirmium, under Constantine I, AD 325-326. CONSTANTINVS IVN NOB CAES, laureate, draped, and cuirassed bust of Constantine II right. Reverse: FELIX PROC-ESSVS COS III, Constantine II standing facing, head right, holding globe in right hand and baton in left; in exergue, SIRM. RIC -; Calic-; cf. Cohen 107 variant; Depeyrot 4/2 variant (COS II). Of utmost rarity, probably unique. Delicately toned with underlining luster. Superb Extremely Fine. Estimated Value $8,000 - 9,000 Ex Knker auction 257 (10 October 2014), Lot 9101; Ex Dr. Anton C.R. Dreesmann, Spink auction 1238, London (2000), Lot 152.