1961. No edition stated. 400 pages. Blue jacket over blue cloth with gilt titles to spine and gilt crest to front. Dated from introduction. Upper text block edge blue. Includes illustrated plates. Pages have slight foxing, tanning and minor thumbing. Pencil inscriptions to pre title page. Boards have some moderate edge wear, with slight bumping to corners and minor bumping to spine ends. Gilt is bright. Unclipped jacket has light edgewear with small tears and creasing. Jacket is slightly rubbed and marked overall.