Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,881 pages of information and 228,796 images on early companies, their products and the people who designed and built them.
Benjamin Cole of 136 Fleet Street, London
John Troughton (c.1716–1788) was in the scientific instrument trade in London, and trained his nephew John Troughton (c.1739–1807); John in his turn took a younger brother as apprentice. After this brother died, another brother, Edward (1756-1835) replaced him; Edward had learned his trade from his uncle, John Troughton.
1826 Edward Troughton took William Simms, an excellent craftsman and businessman, into partnership; Troughton and Simms manufactured mathematical instruments both large and small, and attracted customers around the world.