The work traces the origins and growth of type founding and press manufacture in the United States, beginning with imported types and early local efforts by figures such as Christopher Sauer and Abel Buel, and sketches the gradual shift from European dependence to American mechanical innovation. It surveys the establishment of domestic foundries, the invention and refinement of composing and type-casting machines, the role of electrotyping, and the development of printing presses, while noting stylistic continuities with European type designs and the increasing originality and independence of American printers and manufacturers.