This 1:5 scale model shown at Doncaster in 2017 is of a wall-mounted steam engine designed by Otto Lilienthal, a Berlin engineer and pioneer of glider flight who died after a gliding accident in 1896, aged 48.

Drawings and castings were obtained from GLR-Kennions Ltd.The published design was modified, including the steam valve and the boiler feed pump.

Several hundred of these engines were built in Berlin, but only one survives. It was found in Australia in 1989 and can now be seen at the Otto Lilienthal Museum in Anklam, Germany.

Stan Bray described building one of these model engines in Model Engineer magazine, starting in June 2007.