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H. Lees and Sons of Park Bridge Iron Works, Ashton-under-Lyne
1783 Company established by Mr Lees, grandfather of Samuel Lees, as iron manufacturers, roller makers, and millwrights.
1804 On his death the business was carried on by his widow Hannah under the title of H. Lees and Sons
1873 Samuel Lees (grandson of the founder) became head of the firm when his father died in 1873,
1884 Private company.
1891 Maker of rollers for the cotton, flax, woollen and silk machinery. 
1917 Advert. Rollers. Bar iron and steel forgings. Millwrights and ironfounders 
1961 Hot rolled bars, bright bars, textile and general engineering. 202 employees. 
c.1963 Park Bridge Iron Works was closed.