1968. No Edition Remarks. Unpaginated. Illustrated paper covers. Black and white illustrations throughout. Vol. XXIII Part III. Light foxing and tanning to pages. More prominent to text block edges and reverse of covers. Light cracking and rust staining from staples to gutters but binding remains firm. Paper covers have light edge-wear and corner curling with mild tanning and scuffing overall. Spine has minor rolling and creasing.