BOAC Sales Through the Air BriefcaseOriginal vintage advertising poster published by the British Overseas Airways Corporation (BOAC), the British state owned airline created in 1940 by the merger of Imperial Airways and British Airways Ltd. It later formed part of the British Airways. Fun image of a briefcase with wings flying in the air with a caption: Sales Through the air With the greatest of ease. Signed in image with initials M. P. H. Good condition, restored tears, backed on linen.