1955. Ninth Printing. 136 pages. Grey cloth soft covers with navy lettering. Includes protractor and compass in rear sleeve, but missing postcards. Illustrated by F. J. Rigney. B&W illustrations throughout. Mild brown staining to pages on occasion. Notable foxing and tanning to endpapers and page edges. Pages have a distinct odour. Moderate wear to spine, cover edges and corners, with fraying round edges. Notable tanning to spine, with scuffing and marking to covers.