cover 1915-18 XU5 (3) and picture postcards (4) showing various censor markings including straight-line "PASSED BY CENSOR, ADEN.", ornamental circular-framed "PASSED CENSOR/ADEN" showing Nos. A 3, A 108 and AB-105, and double-ring "POSTAL/ADEN/CENSOR" (the card also shows Eritrea arrival censor cachet)); also four other XU5 including a delightful firm's advertising type from Aden to Bombay.