Military post offices on the Salonica front. French PS posted from "VOJNA POSTA*Br.999*28.10.16" with Serbian censorship "(4) PREGLEDALA/ VOJNA CENZURA" taxed on arrival with 10l. postage due and canc. with "ΚΕΡΚΥΡΑ*20 ΝΟΕΜ. 16". Apparently the PS was given to Greek post office for delivery. At that time Greece was neutral country, so the PS charged with postage due at double the 5l. domestic rate.