Triotone
of 41 Wigmore Street, London, W1. Telephone: Langham 4254. Cables: "Triotone, Wesdo, London"
- 1929 Listed Exhibitor - British Industries Fair. Manufacturers of Radio-Gramophones. Gramophones, Radio-sets. (Stand No. MM. 18)
Sources of Information
- 1929 British Industries Fair Page 168