The product is a vintage hardcover book titled "Communication Networks Vol. I" by Ernst A. Guillemin, published by John Wiley & Sons in 1946. It is a 4th printing of the 1st edition, written in English and intended for young adults and adults interested in communications and engineering technology. With 425 pages, this textbook provides a comprehensive insight into communication networks during the 1930s era, making it a valuable resource for those studying or interested in the field.

This comes as a set, including both the first and second editions.

They are in great condition and serve as a beautiful peek into earlier advanced knowledge.

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