This polygon, which shows the extent in 1851 of the water powered 'Philadelphia Steel Works'. See also SMR PRN 01688 & 01689 for more details. Crossley et al (1989) gives 1581 as the earliest date for a 'the north and south ends' (indicating two separate properties) of 'Morton Wheels' (wheel in Sheffield usually refers to cutlery grinding mills) (Crossley et al 1989 p12). An 1854 sale plan (reproduced in Crossley) shows two separate head goits splitting immediately after the flow enters the entry shuttle. One of these feeds a larger mill dam, the other leads directly to mill buildings. Grinding appears to have been the main focus of the works for the 16th 17th and 18th century. A tilt forge is recorded in 1855 along with a steam powered corn mill (probably the building now known as Bath Steel Works to the south (Separate Polygon HSY 1367)). The northern head race shown on the 1851 OS has been built over by 1891, the southern head-goit, dam and tail-goit by 1925. The buildings shown on later 19th century maps seem to survive well into the twentieth century with the 1952 1:1250OS suggesting they have been absorbed into the Rutland works to the south (HSY 1368). Buildings demolished to make way for the current mixed industrial area by 1976. Legibility of the mill complex is fragmentary due to over-building, although the weir and entry shuttles survive in good to fair condition adjacent to Halifax Works.