Kolok Manufacturing Co
of Rochester Works, Tariff Road, Tottenham, London, N17. Telephone: Tottenham 3315. Cables: "Kolok, London"
1904 Company established.
1947 British Industries Fair Advert as Manufacturers of Carbon Papers and Inked Ribbons for all Office Machines, Typewriters and Systems and Pen and Pencil use, in Boxes, Sheets or Rolls. Suppliers to the Stationery and Typewriter Trades. Stamp Pads and Inks. (Stationery and Printing Section - Olympia, 1st Floor, Stand No. H.2147) 
1956 Patent - Improvements relating to carbon or like transfer sheets. 
1957 Patent - Improvements relating to transfer sheets.