Published for the London County Council by The Athlone Press, London, 1960, 1st edition. Blue cloth boards, gilt lettering to spine and front board, glassine dustwrapper. 11.5ins x 9ins, xiii, (i), 90pp plus colour frontis, 41pp plates and a folding groundplan. Also 19 figures within the text. Previous owners bookplate to front pastedown else VG.