Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,692 pages of information and 232,163 images on early companies, their products and the people who designed and built them.

Worsdall Mercury Controls

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of Africa House, Kingsway, London, WC2. Telephone: Chancery 8545/6/7. Telegraphic Address: "Wormercolt, Westcent, London"


1937 British Industries Fair Advert for "Mercury" Resettable Fuses. Mercury Cut-Outs or Fuses, resettable by Pressing button, for domestic and industrial installations. Mercury Motor Starters. Mercury Cartridge Fuses. (Electricity: Industrial and Domestic Section - Stand No. Cb. 229) [1]

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Sources of Information

  1. 1937 British Industries Fair Advert p592; and p437