Before photocopying

"The authors cover the art and history of mechanical copying from the dawn of the industrial revolution to the remarkable founding of the Xerox Corporation."--BOOK JACKET. "This work presents the first scholarly study of the precursors of today's high-tech, high-speed copiers. Its illustrations offer an incredible array of copying equipment from U.S. Patent Office documents, vintage photographs, and 19th century company catalogs."--BOOK JACKET. "Before Photocopying is an important addition to the libraries of all copybook conservators, collectors, and historians of American and British business history."--Jacket.