Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,396 pages of information and 233,518 images on early companies, their products and the people who designed and built them.
of 41 Trinity Square, Tower Hill, London
Two mile line linking Whitechapel to Campbell Road Junction. The line opened in 1902. 
1897 The company was incorporated.
1902 The line is about 2 miles long, was completed in June and has been equipped for electrical traction.