Plain cover franked with 1938 5c magenta GVI issue (SG 249b) tied by dumb 'Lines' cancel to disguise the location from where the letter was mailed. Addressed to 'o/s D.E. Myers, C/JX 315335, Mess 1, H.M.S. Primrose, c/o G.P.O. London, England' with light strike of circular 'PASSED BY POSTAL CENSOR 18' censor mark in purple on reverse.