William Johnson's Imperial Cyclopedia of Machinery

William Johnson's Imperial Cyclopedia of Machinery, London, c1852.

Frontispiece reads:

The Imperial Cyclopaedia of Machinery being a series of plans, sections and elevations of stationary, marine and locomotive engines, spinning machinery, grinding mills, tools, etc. All of the newest and most approved construction and many of them only recently patented including several of the most useful and important machines from the Great Exhibition. With descriptive letterpress, an essay on the steam engine and a history of the railways of Great Britain.