28th Printing. Unpaginated. Illustrated dust jacket over blue cloth covered boards with gilt. Plates of colour illustrations. German and English dual text. Pages remain clear with minimal tanning and foxing. Plates are bright and clear. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces. Mild crushing to spine ends. Book has a slight forward lean. Gilt lettering is bright and clear. Unclipped jacket has light edge-wear with tears and creasing.