W. G. James
of Kingsbury Road, London.
1904 Company founded by William Gilbert James as Crypto Car and Cycle Co
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. [1]
1963 Motor Show exhibitor. Engine valves. [2]