The Ministerial post office on Corfou. Cover fr. with 10c. French stamp canc. with linear "POSTES SERBES" and posted from "MINISTARSKA*29.9.918". The domestic letter rate was 15c. or 15l., so the Greek post Office taxed the cover on arrival "ΚΕΡΚΥΡΑ*30 ΣΕΠ. 18" with 5l. postage due in pair. The cover bearing boxed "ΕΙΣΠΑΚΤΕΟΝ ΤΕΛΟΣ/ ΔΡΑΧ... ΛΕΠΤ.10" and mark "T". Also Greek censorships.