The Ministerial Post Office on Corfou. An Extraordinary Censor Marking for Censure at Ministary of Public Works. Registered cover fr. with 40c. French stamp posted from "MINISTARSKA*7.4.1917" with linear "POSTES SERBES" and double circle censorship canc. "PREGLEDALA*VOJNA CENZURA", arr. "PARIS*28 4 17". This is the 2nd reported example of this censor marking. RRR.