Prestige and Progress - A Survey of Industrial North Staffordshire
1955 publication of North Staffordshire Chamber of Commerce - page 73

A guide to some of the leading firms of North Staffordshire, Blythe Colour Works, William Boulton Ltd, E. Brain & Co. Ltd, "BRICESCO", The British Reinforced Concrete Engineering Co. Ltd, The British Thomson-Houston Co. Ltd.