1916 unstamped censored cover to London endorsed ‘On Active Service’ that has the signature of the commanding officer and date 17.11.16 at the lower left corner. A red PASSED CENSOR ‘D’ is on the front of the cover, on the back is an F.P.O. 47 17 NOV 16 cancel with a green ‘OPENED UNDER MARTIAL LAW’ label over the F. P. O. datestamp.