A collection of technical drawings and other papers relating to the work of Brian Soper while employed by Mather & Platt at their London Design Department, c.1941-1954. 13 items. The collection consists of publicity leaflets for fire suppression systems issued from the Park Works site in Manchester, two sets of blueprints based on drawings by Brian Soper while employed in the company's London Design Department: one set of five blueprints relating to a fire suppression system installed in Maples furniture store on Tottenham Court Road; one set of two blueprints relating to a fire suppression system installed at the Fire Service College in Dorking, a plan for an extension to a hydrant service at Bowater Paper Corporation in Kent and a draft tender for an unknown client relating to the installation of a Grinnell sprinkler system.