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of Albion Chambers, Cambrian Place, Swansea, Spelter refiners
c.1813 Company established.
1902 The company was registered on 26 March, to acquire spelter and silver works. 
1914 Spelter manufacturers. Speciality: spelter; brand D. and Co. 
1925 the Dillwyn Works carried on business until 1925, when they ceased operations.