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, 1214; BI (g 0,84; mm 15; h 12); FREDERIC' REX, eagle, with open wings, Rv. + RGNI SICILIE, eight rays star; around, pellets. Spahr 91; MEC XIV, 501 var.; Travaini 12.
Dark patina, holed, about extremely fine.