1958. Twenty-Sixth Edition. Unpaginated. Illustrated dust jacket over brown cloth with colour illustrated plates throughout. Light tanning to pages with pencil inscriptions to endpapers and pastedowns. Slight dog-eared pages throughout as well. Boards have visible tanning and bumping to corners. Notable edge wear and crushing to spine ends as well. Unclipped jacket with heavy edge wear and minor rubbing. Tape to spine ends and corners with pencil inscription and tape to interior.