1980. 6th Edition. Unpaginated. No dust jacket. Signed by the author. Blue and white cloth with slipcase. Edited by Raymond Blair & Charles Shapiro. Signed by the editors with dedication to half-title page. Black and white and colour photographic plates and illustrations throughout. Binding remains firm. Pages and plates have light foxing throughout. Boards have light shelf-wear with corner bumping. Light tanning to spine and edges. Light wear marks overall. Slipcase has moderate edge wear with markings to panels and scuffing to edges. Tears to edges. Light sunning to spine and edges.