1968. This Impression (With Revisions). 98 pages. Orange dust jacket over orange cloth. Black and white illustrations throughout. Binding remains firm. Pages and illustrations have light tanning and foxing throughout. Slight staining to front free endpaper. Boards have light shelf-wear with corner bumping. Slight crushing to spine ends. Clipped jacket has light edgewear with tears and creasing. Light tanning to spine and edges. Wear marks overall.