THE EARLY PERIOD. Cover fr. wirth 5c + 2x10c. French stamps and canc. wit "MINISTRASKA*24.11.16" with Serbian censorship canc. "PREGLEDALA/VOJNA CENZURA (1)" in violet, SAISAI PAR LAUTORITE MILITAIRE" (crossed out in blue crayon) and tape "CONTROLE POSTAL MILITAIRE", arr. "GENEVA 13 III 17". During this period, this postmark was not supposed to be used to cancel French stamps on foreign mail. That may be why this cover was held up by the censors. It was released after a couple of months. RRR.