1950. Revised Edition. 64 pages. No dust jacket. This is an ex-Library book. Pictorial paper covered boards. Ex-library copy, with expected inserts and inscriptions. Black and white photographic plates throughout. Binding remains firm. Pages and plates are lightly tanned throughout. Previous owner's inscription to front pastedown. Front free endpaper cut out. Boards have light shelf-wear with corner bumping. Very slight crushing to spine ends.