cover 1942 (c.) envelope (flap missing) from J Bimson on H.M.S. Pursuivant to his parents in Newark, marked "On Active Service Air Mail" and showing tombstone "FROM H.M. SHIP/PASSED BY CENSOR" cachet in blue, "POST/OFFICE/MARITIME/MAIL" in red and framed "DAMAGED BY SEA-WATER" in violet with some staining caused by the latter