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, 1220-1250; BI (g 0,55; mm 14; h 12); FREDERIC' REX, facing eagle with open wings; above, crescent, Rv. + RGNI SICILIE, star; around, pellets. Spahr 90; MEC XIV, 501; Travaini 11.
Green patina, good very fine.