Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,972 pages of information and 229,026 images on early companies, their products and the people who designed and built them.
of Spa Works, Chesham, Bucks. Also at Walthamstow, London, E17. Telephone: Chesham 648-9. Cables: "Freembrush, Chesham"
1947 British Industries Fair Advert for "Spa" Toothbrushes with Nylon Tufts. Also Dental Plate Brushes, Nail Brushes and Hair Brushes, in Nylon and Bristle; and Dressing Combs. (Brushware Section - Olympia, Ground Floor, Stand No. A.1295) 
1948 Patent - Improvements in or relating to boxes.