The product is a comprehensive book titled "Jewelry: Concepts and Technology" by Oppi Untracht, published in 1982 by Knopf Doubleday Publishing Group. This hardcover book is a reference guide for jewelry design, crafts, and hobbies. It covers various concepts related to jewelry making and features illustrations. With a total of 864 pages, the book is a valuable resource for anyone interested in the art and techniques of creating jewelry.
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