Cover fr. with 2x20c Italian stamps, instead of 60c equivalent to 65 lepta which was the rate, canc. "196" and "VENEZIA*25.SET.72" to Corfu. Boxed "FRNCOBOLLO INSUFFICIENTE" and handwritten "22", fr. on arrival with 20l sky-blue and 2l bistre to pay the missing (40c = 43.32 lepta) and canc. "ΚΕΡΚΥΡΑ*16.ΣΕΠΤ.72". On reverse Brindisi transit postmark. Fine and scarce. (Hellas 35a+16b).