of 40-42 Percival Street, London, EC1. Telephone: Clerkenwell 6127. Cables: "Therbarome, London"
- 1947 Listed Exhibitor - British Industries Fair. Manufacturers of Scientific Instruments; Barometers, Thermometers, Barographs, Hydrographs, Salinometers, Surveying, Pocket and Ships Aneroids. Wholesale and Export only. (Olympia, Ground Floor, Stand No. E.1758) 
Sources of Information