Burma. 1942. Registered Air Mail envelope addressed to India bearing Burma SG 20, 6p blue, SG 22, 1a brown (4) and SG 23, 1 3/4a turquoise (block of four) tied by Tiger Camp' and 'Opened by Censor' label tied by boxed 'Crown/ Passed DHC/ 21' censor cachet and Bombay arrival '27 Mars' on reverse. Only a few registered covers known from Tiger Camp. Ex Proud.