Published by John Royle & Sons, Paterson, NJ, 1916
Seller: Andrew Cahan: Bookseller, Ltd., ABAA, Akron, OH, U.S.A.
8vo., 16 pp., illustrated. Printed stiff wrappers. Very good. Describes in detail a photoengraver's machine for mounting engraved plates square with blocks, and for mounting color plates in precise register.