The Ministerial post office on Corfou. Registered cover fr. with 50πα. Serbian stamp (Corfou issue) with linear "POSTES SERBES" and posted from "MINISTARSKA*24.10.-1917" with Serbian censorship canc. "CENSURE/MILITAIRE SERBE" in black, arr. "NEW YORK". New Serbian stamps were not to be used until Serbia was Liberated. Repotedly were delivered to the Ministarska office on 18.10.1918. VERY SCARSE.