Watch List notes:

THE ROMAN EMPIRE
Constantine I augustus, 310-337

Siliqua, Constantinopolis 326, AR 2.72 g. Rosette-diademed head r. Rev. CONSTAN – TINVS AVG Victory advancing l., holding wreath and palm branch; in exergue, CONS. C 97. RIC 5.
Rare. A portrait of unusually fine style and a lovely iridescent tone, hairline flan
crack at five o'clock on obverse, otherwise extremely fine