The Ministerial post office on Corfou. Double weight cover fr. with 10c+2x15c. French stamps (double weight foreign letter rate) canc. with linear "POSTES SERBES" and posted from "MINISTARSKA*22.2.-918" with Serbian censorship canc. "CENSURE/MILITAIRE SERBE " in black, arr. "GENEVE*7 IV 1918".