Watch List notes:

THE ROMAN EMPIRE
Vetranio, 350

Siliqua, Sirmium 350, AR 3.04 g. D N VETRA – NIO P F AVG Laureate, draped and cuirassed bust r. Rev. VICTORIA – AVGVSTORVM Victory advancing l. holding palm branch and trophy; in exergue, SIS. C 8. RIC 269.
Very rare. Light iridescent tone, virtually as struck and almost Fdc