of Norfolk Laboratories, Old London Road, Brighton, 6, Sussex. Telephone: Brighton Preston 3927. Cables: "Sliderules, Brighton"
1947 Listed Exhibitor - British Industries Fair. Manufacturers of Inexpensive Slide Rules for all purposes Incorporating Logarithmic Log-Log, Trigonometrical, Precision, Commercial, Reciprocal and Dualistic (patent) scales. Slide Rules made to customers own specifications. Adjustable Set Squares, Draught-Squares, etc. (Olympia, 1st Floor, Stand No. H.2181)