Military post offices on the Salolica front. Swiss 10H PS posted from "VAG-ETAPES-5*22.2.18" with Serbian censorship canc. "PREGLEDALA/VOJNA CENZURA (46)" in violet, via "VOJNA POSTA*Br.999*12.2.18" in black to Geneve. "VAG-ETAPES-5" CDS was reportedly lacated at Sorowitch (Greek, Amynteon). Message starts "Siatista 2-II-1918". No postage was necessary within the military postal system. The Swiss accepted it, although it was invalid.