1968. First Edition. 135 pages. Pictorial dust jacket over purple cloth. Folded illustrated diagram and 'Transporting Concrete to the Job; Man on the Job Leaflet 12' tucked into book. Pages are lightly tanned and foxed throughout. Light thumb-marking present. Binding remains firm. Moderate creasing and some tears to edges of diagram tucked into book. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Unclipped jacket has light edge wear with chips, tears and creasing. Light tanning to spine and edges.