Fifty Observer Brain-Twisters D. St. P. Barnard
1962. First Published. 109 pages. No dust jacket. Blue cloth. Black and white illustrations throughout. Binding remains firm. Pages and illustrations have light tanning and foxing throughout. Water staining to some page edges, text remains unaffected. Pencil inscriptions to pastedowns and front free endpaper. Boards have light shelf-wear with corner bumping. Light tanning to spine and edges with crushing to spine ends. Light wear marks overall.