The Ministerial Post Office on Corfou. Registered cover fr. with 2x25c. French stamps canc. with linear "POSTES SERBES" and posted from "MINISTARSKA*19.7.917" (between 15.7.17 and 19.9.17 the hour indication was removed) with Serbian censorship canc. "CENSURE/MILITAIRE SERBE" in red and French censorship "OUVERT par lAUTORITE*302" and tape "CONTROLE POSTAL MILITAIRE", arr. "GENEVE*17.VIII.17".