Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,699 pages of information and 232,163 images on early companies, their products and the people who designed and built them.
of Kingsbury Road, London.
1913-1917 For a list of the models and prices see the 1917 Red Book
1917 Vermorel cars.
Presumably name changed
1922 Private company.
By 1934 the business was exclusively devoted to valve production.
1961 Manufacturers of engine valves for internal combustion engines. 
1963 Motor Show exhibitor. Engine valves.