This garden was only created a few years ago, and the pillars are from the nearby Argyle House. The pillars are made of Coade stone, a method of creating a ceramic using crushed flint, which can be finely moulded before firing – so the columns were shaped by press-moulds, not carved. The technique was perfected by Eleanor Coade, an eighteenth-century manufacturer of neoclassical statuary. Coade stone is highly weather resistant,and the pillars look new!