BOULTON (Matthew Piers Watt). Specification of Matthew Piers Watt Boulton. Turbines or Propellers.1867

London: Printed by George E. Eyre and William Sottiswoode, 4to (285 x 195 mm), 11, [1]pp., stitched as issued, orig. blue printed wrappers, patent stamp on upper wrapper. Letters patent to Matthew Piers Watt Boulton, of Tew Park, Oxfordshire, Esquire for the Invention of "Improvements in Apparatus for Receiving Motion or Energy from Fluids, and for Imparting it to them, and in the Propulsion of Vessels and Apparatus to be used for that Purpose." Sealed the 24th September 1867, and dated the 28th March 1867.