The Ministerial Post Office on Corfou. Registered cover fr. 50c. French stamp (foreign reg. letter rate) canc. with linear "POSTES SERBES" and posted from "MINISTARSKA*1.7.17-13" (date bar changed to include the hour) with Serbian censorship canc. "CENSURE/MILITAIRE SERBE" in red, arr. "WEESEN*26.VII.17". There is a known use, of this censor type, on a cover with date "30.6.17). R. Superb.