Printed in an edition limited to only 75 numbered copies. (Bibliography of the Plough Press, p.8). Includes descriptions and actual period examples laid-in for 16 different printing processes utilized during the nineteenth century. Included are familiar processes such as wood engraving, copper and steel engraving, lithography, and aquatint as well as less familiar processes such as omnigraphy, and anastatic printing. An early book from this fine English press. Useful as teaching tool because of the examples of the different processes which are present. This copy has been supplemented by a number of additional samples of the various processes and there is a note in pencil stating that "This is an extra-illustrated copy." Slipcase rubbed and faded along edges.