The shell of Lord Strathbungo’s Improved Skyrocket Manufactory in Angus. Strathbungo was a polymath and entrepreneur who became an enthusiastic student of the pioneering work of Konstantin Tsiolkovsky and Hermann Oberth in the 1920s. He envisaged a multitude of both commercial and experimental applications for rocketry, but died along with a number of his staff in an accident involving concentrated nitric acid that occurred at the time of the Wall Street Crash. His papers were left to the Scottish Rocketry Society, but were confiscated by the Crown.