Package of imaginary site illustrations of hydraulic rams for advertising purposes, drawn by John Blake, c.1890, and from which engraved printing plates were made for his company’s catalogue Imaginary site illustrations of hydraulic rams
Proof illustrations of later engineering products (including hydraulic rams) by John Blake Ltd, c1900 onwards Proof illustrations of later engineering products (including hydraulic rams) by John Blake Ltd
John Blake Engineers, Ltd's bound reference collection of patent specifications associated with hydraulic rams, covering the period 1797-1918 John Blake Engineers, Ltd's bound reference collection
Enlarged photograph 14 1/2"x11 1/2", of Vertical Triple Expansion Engine driving a pump at Kempton Park and giving 1000 hp. Enlarged photograph 14 1/2"x11 1/2"