Trading estate that developed on the site of the former Old Mill Glassworks. The modern sheds currently on the site have been built since the 1980s. The glassworks was established in 1861 by James Wragg. He gave up the business in 1862 and became a pork butcher, the glassworks was bought by Samuel and Joshua Redfearn who concentrated on bottles and jars. The works was enlarged and was eventually to cover most of this site. The glassworks was a success and the Redfearn brothers also took over a glassworks at Aldham (HSY7218). By 1946 the Old Mill site was too small for the company and a new works was opened in Monk Bretton (HSY7690). Prior to the development of the glassworks, Mount Osborne Well Colliery was in operation on this site from at least 1854 and it continued until 1883 (Gill 2007b) after the beginnings of the glassworks were in place. This land is marked as enclosed by 1777. Its proximity to the former open field at Swinhill suggests it was originally part of the open field system. There is fragmentary legibility of the past landscape as the route of the Dearne and Dove Canal that ran alongside the glassworks is fossilised in the property boundaries.