Description:The Boundary or California Works was built in 1819 in King Street, Longton and occupied by Jacob Marsh. Latterly operated by Leo Samuels Ltd, manufacturers of china and earthenware teapots and fancies. The grade II listed building is described as having an "Entrance range of 3 storeys, 5 bays with central projecting bay with segmentally-arched way to rear with Venetian style window over, and Diocletian window above. Pediment with heavy modillion cornice and date stone". This is thought to be one of the least altered early 19th Century pottery facades. Only the facade of the original works survives.