Watch List notes:

House of Hohenstaufen (1194-1268), Frederick II (King of Sicily, 1198–1250; King of Germany, 1212-1220; Emperor, 1220-1250), Half Denaro, Messina or Brindisi, 1246; BI (g 0,35; mm 12; h 12); + F ROMANR' SEP AVG, in field, IP, above, Rv. + + R IERSL' ET SICIL, cross; above, trefoil. Spahr 141; MEC XIV, 564; Travaini 42a.
Rare, green patina, good very fine.