Watch List notes:

House of Hohenstaufen (1194-1268), Frederick II (King of Sicily, 1198–1250; King of Germany, 1212-1220; Emperor, 1220-1250), Denaro, Messina or Brindisi, 1243; BI (g 0,57; mm 17; h 4); + ROM IMPR SEP AVG, crowned head r., Rv. + R IERSL' ET SICIL', facing eagle with open wings. Spahr 126; MEC XIV, 559; Travaini 36.
Green patina, about extremely fine.