Folio card covers with color onlay (onlay creased /wrinkled and small tears/covers tanned/marked and wavy) [32]pp. Description faces each illustration except the first illustration is mounted on the cover and is in poor shape - all other plates in very good shape. The mounts are on stiff cartridge paper which is a bit tanned but supple and without tears, the text is on the back of each mounted plate + the intoductory 8 pages.