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of 12 Wharf Road, City Road, London, N1. Electrical and General Engineers
1820 Company established
c.1829 William Reid went into business on his own account as an engraver.
William later brought his sons, first William junior, into the business
1850 Laid the first submarine cable across the Channel for Submarine Telegraph Co
1910 Company incorporated.
1914 Engineers and contractors. Specialities: electrical and other instruments of precision, pneumatic dispatch tubes, electric lighting, power and traction engineering. Employees 200 to 500. 
1922 Manufactured high-class electrical and scientific apparatus, including precision instruments
1922 Company in voluntary liquidation