Elco Clocks and Watches
of 51 Hatton Garden, London, EC1. Telephone: Holborn 2116 (3 lines). Cables: "Ocle, London". Factory at Hirwaun Trading Estate, Aberdare, Glamorgan, Wales. Telephone: Aberdare 521-2. Cables: "Timproduct, Hirwaun"
- 1947 Listed Exhibitor - British Industries Fair. Manufacturers of Electric Clocks. (Olympia, Ground Floor, Stand No. E.1761a)