1969. Revised Edition. 130 pages. No dust jacket. This is an ex-Library book. Illustrated paper covered boards with lettering. Expected library inserts, stamps and inscriptions. Clean pages with light tanning and mild foxing throughout. Pen markings to front free endpaper. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Lettering is bright and clear. Visible wear marks to boards.