The Ministerial post office on Corfou. Registered cover fr. with 5c+3x50c. French stamps (foreign registered 140-160gr. letter rate) canc. with linear "POSTES SERBES" and posted from "MINISTARSKA*14.4.-917" without censorship indication. Many heavy letters were sent by Serbian goverment agencies to France and Switzerland. These were bulky envelopes and packages and, usually, battered in mail.