This polygon approximates to the grounds of the Cooper Wheel and Rolling mill. This site is thought to date from 1742 (Crossley, 1989 p 109) when John Cooper built the first wheel on the site. The site was enlarged by J Hoyland and Co in 1765 and converted to a rolling mill. By the 19th century the wheel was known as Rowlee and listed in Whites directory of 1854 as in the ownership of the Younge family as a silver and silver plate works. The nearby Sheaf House is thought to have been built by John Younge around 1800. The works are depicted in 1851 as both water and steam powered (with at least one boiler evident. The works evidently went out of use by 1875 with the lease recorded by Crossley (ibid) as having been cancelled with the note "These premises were relinquished at Michaelmas 1874 and have been partially taken down". It is around this time that Queens road was laid out necessitating the filling of Coopers Dam. Despite the closure the buildings are shown until 1905. By 1923 the current housing has replaced them (the oblique course of St Wilfred's Road appears to fossilise the building line and foundations may survive). The oldest part of this complex lies in the yard area between the buildings at the end of Lancing Road and Edmund Road. One of the roads built at the time of its final demolition (to the north of this site) was named 'Silver Mill Road' in its memory. Fragmentary legibility- site currently built over.