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of Newhall Street, Birmingham, and Liverpool, London, and Dublin, Electroplaters, Gilders, Manufacturers of Silver, Gilt, and Plated Goods, and Bronzists.
1842 Elkington and Co received financial backing from Josiah Mason - the firm was renamed Elkington, Mason and Co between 1842 and 1861, and was extremely successful. It introduced electro-typing as a new method of production for silver-plated items.
1843 Acquired Werner Siemens’ English patent for electro-gilding.
1849 Mentions this electro-plating business.
1849 Directory: Listed as makers of Silver and Plated Wire 
Acquired a patent of Alexander Parkes, an able chemist employed by the firm, for smelting copper ores, and purifying the copper by means of phosphorus. Found a suitable place where they could set up works for smelting Cornish ore on the Burry River, not far from Llanelly.
1850 Constructed a copper-smelting works at Pembrey, South Wales
1851 Elkington and Co exhibited at the Great Exhibition with enormous success including a Council medal from Jury XXIII for artistic application of electrotype.
1862 Partnership dissolved. '... the Partnership or joint trade lately subsisting between us the undersigned, George Richards Elkington and Josiah Mason, carrying on business under the style or firm of Elkington, Mason, and Company, in Birmingham, Liverpool, London, and Dublin, as Electroplaters, Gilders, Manufacturers of Silver, Gilt, and Plated Goods, and Bronzists, was dissolved...'
The business reverted to Elkington and Co