Fuller's spiral slide rule, no. 849, made by W.F. Stanley, with an instruction booklet George Fuller's spiral cylindrical slide rule Mathematics c. 1880

Pallet 7 of 12 -Part of Manchester University Differential Analyser, consisting of 16 feet central frame, 4 integrators, 2 input tables, output table, camera. The Manchester Differential Analyser is an analogue computer designed to solve a class of mathematical functions called differential equations. This machine was built by the Metropolitan-Vickers Electrical Company and completed in 1935 for the Physics Department at Manchester University. The machine was based on an American design, powered by electric motors, and uses mechanical components to model mathematical relationships. The central device is a disc-and-wheel device integrator which performs mathematical integration. Manchester University Differential Analyser Mathematics 1935

Hyperbolic paraboloid; a skew quadrilateral turning upon four hinges with parallel axes or pins; the lengths of the strings remain unaltered during deformation. Hyperbolic Paraboloid string surface model Mathematics 1872