Watch List notes:

Constantine II, as Caesar (Constantine I, 306-337), Solidus, Thessalonica, AD 326; AV (g 4,43; mm 20; h 6); Diademed head r., Rv. CONSTAN - TINVS CAESAR, Victory advancing l., holding palm branch and wreath; in ex. SMTS. RIC 147.
Very rare, expressive portrait, extremely fine / about extremely fine.