1933. No Edition Remarks. 166 pages. No dust jacket. Green cloth. Contains black and white photographic plates, with fold-out diagrams. Pages and plates are lightly tanned and foxed throughout, heavier to endpapers. Cracking to gutters of a few pages with exposed binding. Fold-out plates appears to be in good condition with some light tanning. Binding remains firm. Boards have moderate edge wear with bumping to corners and rubbing to surfaces. Crushing to spine ends with small splits and fraying to cloth. Book is slightly bowed and forward leaning. Moderate sunning to spine and boards. White staining to bottom edges of boards. Foxed marking to spine.