The product is a vintage 5th edition reference book titled "Serial Number Reference Book Metalworking Machinery 1973-74" published by U.S. EQUIPMENT COMPANY. This book provides information on metalworking machinery manufactured in the United States during the specified years. It is a valuable resource for those in the metalworking industry looking for guidance on specific equipment and processes. machine tool serial numbers industrial machinery guide vintage machinist reference machine shop reference book industrial equipment identification machinery serial lookup machine tool history 1970s industrial book factory machinery reference used machine appraisal guide
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