British Air Transport – The Pioneering Days 1919–1934 is an 8 meters -long mural by William Kempster depicting, from left to right, a chronological sequence of events in the history of British aviation on the London to Paris route starting on the left with Hounslow Heath Aerodrome in 1919 and finishing on the right at Croydon Aerodrome (now Airport House) in 1931.