Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,949 pages of information and 233,606 images on early companies, their products and the people who designed and built them.
Royal Dutch Forge was a metal company in Leiden, which included several departments: in addition to a coarse forge an iron foundry, engineering, construction workshop, chain factory and shipyard. The company existed from 1836 - 1978. There were two main branches: the original, located at the Zuidsingel near downtown, and in 1898 newly built chain factory annex foundry in De Waard. In 1913 land was the Outside Spaarne to Haarlem in use for the construction of hulls for ships.