Military post offices on the Salonica front. Censor Tapes. Registered cover posted from "VOJNA POSTA*Br.111*9.3.18" with Serbian censorship "PREGLEDALA/VOJNA POSTA (66)" in violet and tape "Controle Postal Militaire Serbe" in black (type III), fr. with 2x25c. and posted from "TRESOR ET POSTES*504*25 3 18", arr. "WEESEN*3.V.18". Censor tapes were available, but only rarely used.