Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,170 pages of information and 233,417 images on early companies, their products and the people who designed and built them.
Jenkins Brothers Ltd., of 6 Great Queen Street, London WC2, Factory in Canada. Associated with US company of similar name.
1864 Business founded in the USA by Nathaniel Jenkins.
1927 Advert for valves. 
Works in Montreal, Canada