Signalling diagram, North End Crossing, British Railways (Southern Region), Dartford-Erith line, 28 July 1970, in glazed frame. Signalling diagram 1970
Photogaphic print and diagram, showing showing secondary beta-rays ejected from air and from a copper screen by X-rays 1920-1930
Diagram showing apparatus for formation of helium by the accumulation of alpha-particles emitted from emanation 1920-1926
Photogaphic print, showing a secondary beta-ray ejected from platinum by X-rays, together with a secondary beta-ray due to platinum K-radiation 1933-1937
Diagram showing the variation of frequency and wavelength of characteristic X-rays from various elements 1950
Black and white photographic print, diagram and display label, showing the production of electron pairs in krypton gas 1936-1937
Diagram of Joseph John Thomson's method of measuring electromagnet for thermo-electrons (1899) 1945-1948
Photogaphic print and diagram, showing secondary beta-ray ejected from copper by X-rays together with a secondary beta-ray due to copper K-radiation 1920-1930
Engraving. Astronomical diagram. The signs and seasons of the zodiac. ca.1850. Published by James Reynolds & Sons circa 1850
Engraving. Astronomical diagram. Eclipses. The theory of the tides. ca.1850. Published by James Reynolds circa 1850
Diagram. Methods of Ascertaining the Longitude. ca.1851. Published by James Reynolds & Sons circa 1850
Engraving, Astronomical Diagram. The Earth's Annual Revolution round the Sun and its diurnal rotation on its axis circa 1850
Signal box diagram, British Rail, Occupation Posts for Engineers Rail Motors, Selby - Market Weighton, Market Weighton - Driffield, Beverley - Market Weighton branches, framed and glazed. Signal box diagram
Signalling diagram, framed, London & North Eastern Railway, Coxwold G.B., December 1946. Signalling diagram 1946
Signalling diagram, framed, Hull & Barnsley Railway, North Cave Station, by Saxby & Farmer, 30/11/1915. Signalling diagram 1915
Signal box diagram, British Rail (Southern Region), Edenbridge Station, framed and glazed, 24th September 1981. Signal box diagram, British Rail (Southern Region), Edenbridridge Station 1981