Browse Items (3473 total)

Iron casing with lens and pin hole aperture at either end. 2 other holes on top and bottom.

Printed circuit board with 28 nixie tubes, each tube for displaying one of the digits 0-9.

Painted wooden box with metal tools inside including tweezers, cross headed screw driver, 2 handles, Allan key and 2 flat screw drivers.

Large paper poster, on wooden baton, of the Cooke Research Microscope, detailing the workings and light paths in it.

Large fabric backed poster of the graphs for y=cos x and y= sin x with wooden batons. Rolled up. Appears to be hand drawn.

a circular wooden lead weighted base with turned wooden leg terminating in an apparatus plate. The stand is telescopic with adjustment by a wooden screw

One of two Ross projection lenses. Consist of 2 lenses; objective and eyepiece, in metal, casing.

Wooden frame holding a piece of paper. Paper marked with burnt patches; possibly used to show illumination of a candle. Has wire handle, possibly broken off of something.

6 large clear plastic rulers with scales on them. 2 have straight edges all round the others have one inclined edge. Manufactures name on base.

A medium sized electronic valve with stout cylindrical glass casing, metal base and 4 pins. Part of a massive collection of valves in a cardboard box.