Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 137,255 pages of information and 220,095 images on early companies, their products and the people who designed and built them.
of Leytool Works, High Road, Leyton, London, E10. Telephone: LEY 5022-3
1940 March. Article in Flight magazine. Contribution to the war effort. 
1953 Two adverts on this page: 1. The Leytool Automatic Hack-Saw. 2. The Leytool Precision Hand Drill. 
1955 September. Listed in Flight magazine in Ancillary Industry: