of Broadwater Road, Welwyn Garden City, Herts. Telephone: Welwyn Garden 3232. Cables: "Roche, Welwyn Garden City"
- 1947 Listed Exhibitor - British Industries Fair. Manufacturers of Synthetic Vitamins for Food Enrichment, Food Preservation and Medicinal purposes. Also New Synthetic Drugs and Fine Chemicals. Working Models Illustrate Synthetic Vitamin Manufacture and Production of Tablets. (Olympia, Ground Floor, Stand No. A.1191) [1]