Quarter-plate `Cameo' camera used to take 'second phase' of Cottingley Fairies photographs, 1918-1920 Photographs 1915-1920
General Electric CA101 Pilotron triode (McVitie Weston valve collection), 1918 Electronic Components 1918
Copy of clay liver used for divination, original from Babylon, 2050-1750 BCE Classical & Medieval Medicine 2050-1750 BCE
Floor-standing telephone exchange made by Allmänna Telefonaktiebolaget L. M. Ericsson Telecommunications c.1920