1926. First Edition. 61 pages. No dust jacket. Red cloth covered boards. Pocket to rear board is missing the chart. Pages are moderately tanned and occasionally foxed throughout. Cracking to hinges, no damage to end papers. Some occasional mild cracking to gutters throughout, binding remains reasonably firm. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Mild crushing to spine ends, with fraying cloth and small splits. Sunning to spine. Book has a slight forward lean.