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 142,963 pages of information and 228,875 images on early companies, their products and the people who designed and built them.

Humphrey Cole

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Described as the maker of the 'oldest theodolite in the world'. Dated 1574.[1]


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Sources of Information

  1. [1] 'The Makers of Surveying Instruments in America since 1700' by Charles E. Smart, New York, 1962