British Guiana. 1944. Air Mail envelope addressed to Scotland bearing British Guiana SG 310, 4c scarlet and black, SG 311, 6c blue and SG 313, 36c violet tied by Air Mail/ British Guiana double ring with 'Opened by Examiner/I.I./ 40' censor tape, hand-stamped 'By Air / From British Guiana/ To New York' in carmine on face. Very fine.