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, 1242; BI (g 0,79; mm 16; h 12); + F ROM IP SEM P, in field, A between two pellets; below, star and crescent, Rv. + IERL' ET SICIL' R, cross; above, star, below, three pellets. Spahr 123; MEC XIV, 552; Travaini 32.
Dark patina, good very fine.