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 148,415 pages of information and 233,868 images on early companies, their products and the people who designed and built them.


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1869 Calipers
1880. From The Engineer of 25th June.
6" steel rule marked 'Whittam Walkden'. The fine standard of engraving will be apparent

William Whittam of 25 Islington Street, Salford, Manchester (address in 1880), then Walkden, and now Fletcher Street, Bolton.

  • 1860 Company established.
  • 1884 Patented an internal gauge, being an improved form of telescopic gauge.[1]
  • In 1886 their address was 188 Chapel Street, Salford.
  • Now located in Bolton as Whittam Precision Rules [2]

See Also


Sources of Information

  1. English Mechanic and World of Science, 17 Oct 1884
  2. [1] Whittam website