This oil sketch by Donald Laycock is for "Terra Australis", a large (20' X 8') outback desert scene commissioned by Robin Boyd for the Australian Pavilion at Expo 1970. Robin Boyd was the Exhibit Architect of the Australian Pavilions at Expo '70 in Osaka and Expo '67 in Montreal. It is not known what happened to "Terra Australis" after Expo '70.Red toned abstract composition."DL 69" in bottom right corner. Sketch for Terra Australis Exhibition '70" written on canvas around the frame on the rear.donald laycock, expo 70, osaka, robin boyd, walsh st artwork, ohm2022, ohm2022_32