Model (scale 1:12) of Pumps used in Cornish mines

This model originated with the Museum of Practical Geology in Jermyn Street, London. It is an instructional model shows a pumping engine of the type widely used to remove floodwater from metal ore mines in Cornwall, with the engine built into a characteristic engine-house complete with sheer-legs above the mineshaft (to help in lifting out lengths of pump rod) boiler and chimney - although the former is not present. What makes the model more unusual is that, rather than showing the engine in isolation as many models do, it portrays the complete pumping installation from the engine at ground level down through the pump rods, rising mains, counter-weights and sumps which might stretch huge distances below ground, and all mounted in a glass fronted case for ease of viewing. This cememnts the model's value as an educational and instructive tool on water-pumping practice in mining applications.