1941 Argostoli overprints, 20l+20l. Historical in sheetlet of 30 "ITALIA/Occupazione Militare/Italiana isole/Cefalonia e Itaca", var. "Opec C" (pos.8,12 and 15)and "dot between "a" and "l" of Italiana" (pos.1), u/m. (Hellas 58+58 var).