Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,850 pages of information and 228,791 images on early companies, their products and the people who designed and built them.
Edward Thomas started an engineering business in Prague
1854 The company became Ruston and Co. with the entry of Ruston's brother John Joseph Ruston.
1869 became Prager Maschinenbau AG.