Artificial Pulham Stone Outcrop, Knighton Wood pond, Woodford Green. Strange synthetic outcrop, probably a rustic feature of a long gone mansion estate. Landscaping by the brewer and liberal MP, EN Buxton (d 1924) of Leytonstone House. Pulham Stone was manufactured until the 1960s next to Broxbourne Railway station by the firm of James Pulham & Son.