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Silicon crystal for wireless telegraphy, mounted in a locket, 1906-1916
Lead weight marked 'Reid' from the first cross-Channel telegraph cable, 1850.
Galvanometer from prototype Cox selenium-cell magnifier equipment, 1910-1920
Packet of 39 vaccination points for smallpox vaccination used at Bristol Station, London, England, 1873
Public Health & Hygiene
Chart of the Atlantic showing proposed couRse of the Atlantic Cable, 1856-1857