1916 Type-written 1d blue from carbon sheet, on laid paper, variety 'LL' at left foot of frame-line, on Censor cds cover with central red crayon '5 19 MY 16' cancel, to England, with hand-drawn Shield 'PASSED BY CENSOR M' mark. Overall F-VF, stamp sl cnr flts which are not noticeable. SG 11 cat £900 & 'from x6' on cover = £5400+ which is far too low as only 2 covers known! Only 120 produced & possibly unique with variety in blue & certainly unique on cover. 2017 Ceremuga photo cert. (P) (Image1)