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, 1249; BI (g 0,73; mm 15; h 3); + ROM IMPERATOR, in field, F, around, three stars, Rv. + R IERSL' ET SICIL', cross; around, four stars. Spahr 148; MEC XIV, 570-571; Travaini 48.
Brown patina, about extremely fine.