Boundary Wall of Marshall Mills with Workshop and Railings

The boundary wall of Marshall Mills, along with a workshop and railings, dates from around 1808 and 1850, with later 19th-century alterations. It was built for John Marshall's flax spinning mill. The wall is made of coursed squared grey gritstone and gritstone rubble, standing approximately 3 meters high, with a flat coping that ramps down to the railing at the north end. The overall length of the wall is about 50 meters. The wrought-iron railings feature a standard design with three rails and triple points, attached to the north end of the wall by an iron bar. The single-storey workshop has two doors and three windows, with an added bay to the left. It features stone window sills and brick wedge lintels. Historically, in 1808, John Marshall extended his flax mill by constructing a warehouse on the south side of Hol Beck, likely at the same time the wall was built. The alignment of the wall was altered to accommodate a row of back-to-back houses known as Kellet's Row, located on what is now Back Derwent Street, also referred to as Brunswick Street. By 1866, the workshop was part of a long line of buildings in the yard.