The Ministerial Post Office on Corfou. Military PS posted from "MINISTARSKA*12.4.1917" with Serbian censorship canc. "PREGLEDALA/VOJNA CENZURA (1), via "VOJNA POSTA*BR.999" with censorship can. "PREGLEDALA/VOJNA CENZURA" in blue, used as arrival cancellation between March and April 1917 on Vojna Posta br.999, to "Vojna posta Br.414".