 In 1863 Lassey's share was bought by John Holroyd and the company then named Wilcock & Co.In 1879, after a period of expansion, the firm made decorative bricks and tiles in orange or buff-coloured architectural terracotta, glazed bricks, and glazed terracotta (faience).Architect Alfred Waterhouse used their materials in his Yorkshire College (1883) in Leeds, and his National Liberal Club (1884) in London.