Handbook of construction plant, its cost and efficiency
A 1914 engineering handbook by Richard T. Dana, published in Chicago by the M. C. Clark Publishing Co., cataloguing the cost and output of contractors' construction plant for estimators, contractors and site engineers. The 246 halftones are manufacturers' photographs of drills, hoists, ditching machines, belt-driven shop equipment and portable engines, mostly isolated on plain grounds with occasional workmen for scale, giving usable silhouettes of gears, flywheels, frames and wheeled undercarriages.
