Watch List notes:

House of Hohenstaufen (1194-1268), Frederick II (King of Sicily, 1198–1250; King of Germany, 1212-1220; Emperor, 1220-1250), Augustale, Messina, After 1231 ; AV (g 5,26; mm 19; h 6); CESAR AVG IMP ROM, laureate and draped bust of Frederick II r., Rv. + FRIDERICVS, eagle standing l., with open wings and head r. Kowalski V 1/A 48; Spahr 98; MEC XIV, 514-515.
Rare, good very fine.

Ex Fritz Rudolf Künker, Auction 100, lot 187.