Double weight registered cover from Br.999 fr. with 5c+6c10c. and posted from "TRESOR ET POSTES*504*23 6 18" with French censorship "OUVERT par lAUTORITE MILITAIRE*309" and Serbian censorship "11 PREGLEDALA/VOJNA CENZURA" in violet (type VII, grade G), arr. "WEESEN*24.VII.18".