Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,012 pages of information and 232,919 images on early companies, their products and the people who designed and built them.
of 38 Charterhouse Square, London, EC1, The J. Davis (Jadex) Ltd., Group of Companies. Showrooms at Regent House, Regent Street, London, W1; Charles Street, Cardiff; St. Vincent Place, Glasgow. (1947)
1937 Wire and wire cords. 
1947 British Industries Fair Advert in conjunction with Playtime Wear. 'Names that mean Style and Value in Ladies and Children's Wear'. Manufacturers of 'D'Avis' and 'Jadex' Ladies' Coats, Tailored Costumes, Sportswear, and two-piece Suits. (Textiles Section - Earls Court, Ground Floor, Stand No. 226)