1968. Revised Edition. 75 pages. Illustrated dust jacket over illustrated paper covered boards. Black and white and colour illustrated and photographic plates. Pages are bright and clear with light tanning to text block edges. Binding remains firm. Boards have minor corner bumping and edgewear with subtle scuffing overall. Spine has light tanning and crushing to ends. Unclipped dust jacket with minor rubbing, chipping and tearing to edges. Some minor tanning, creasing and scuffing overall.