The publication of Ken Cope’s seminal work, “Makers of American Machinist Tools”, produced a flood of new information about previously undocumented makers. This book documents more than a hundred new makers and expands information about the products of major manufactures. A series of indices includes supplemental patent information omitted from Cope’s Patent Guide, new information on early makers Darling & Swartz, several previously unknown catalogs and much more. The newly-discovered tools include a wide variety of the increasingly collectible speed indicator gauges. An excellent new book from America’s most prolific tool author.