No Edition Remarks. 66 pages. Illustrated paper covers. Puzzles and problems throughout. Moderate tanning to pages overall. Pen inscription to reverse of front paper cover. Red marking to reverse of rear paper cover. Page corners are lightly dog-eared and chipped throughout. Binding remains firm. Paper covers have minor edge-wear and corner curling with moderate tanning and marking overall. Spine has minor rolling with moderate creasing and chipping.