According to Culme (1987)¹, this firm was established in 1908 as Roberts & Doré Ltd, a wholesale silversmiths at Hatton Garden, London.  The partners were Tom Rhodes Roberts (1879-1965) and James William Doré (born 1874).  Roberts was the son of an accountant and had been born at Cinderford, Gloucestershire;  Doré had been born at Chalk Farm, London.  The enterprise was also listed in the Sheffield directory (1911) as an electro-plate ware manufacturer in Eyre Street.  This was a subsidiary, which in 1912 was registered as a private limited company, Roberts, Doré & Hall (Sheffield) Ltd.  The registered offices were at Hatton Garden, London, and Eyre Lane, Sheffield.  Capital was £2,000 and the directors included T. R. Roberts, J. W. Doré, William Henry Hall, and T. H. Hodgkinson (Sheffield Daily Telegraph, 3 September 1912).  Matheau-Raven (1997)² stated that the Sheffield side of the firm ceased in 1923, though Roberts, Doré & Hall remained active until 1979, managed by Tom R. Roberts and his son, Trevor Roberts (1907-1980).   It was wound up in 1996.

^1. Culme, John, The Directory of Gold and Silversmiths, Jewellers and Allied Traders 1838-1914 (Woodbridge, Suffolk, 2 vols, 1987)
^2. Matheau-Raven, E R, The Identification and Dating of Sheffield Electroplated Wares 1843-1943 (London, 1997)