J. Halden and Co
of 8 Albert Square, Manchester, 2. Telephone: Heaton Moor 2241/2242. telegraphic Address: "Halden, Manchester". Also London, Newcastle-upon-Tyne, Birmingham, Glasgow, Leeds. Works at Rowsley Works, Reddish, Stockport.
1878 Company established.
1907 Incorporated as a limited company.
1914 Drawing office material dealers and manufacturers. Specialities: drawing office materials and instruments, engineers' photo processes, the continuous photocopying machine, Halden's electric photocopying frame (copies two tracings at one operation), the Halden Calulex, a patent circular slide rule. Employees 220. 
1937 British Industries Fair Advert for The Halden Type 36 Continuous Photo Copying Machine. Engineers' Drawing Office Specialities, Developing Machines, Drafting Tables and Machines, Photo Processes for plan reproduction and all Drawing Office Equipment. (Services Section - Stand Nos. Cb.823 and Cb.722) 
1937 Manufacturers of drawing office materials, instruments etc.