The product is a hardcover book titled "Sundials: How to Know, Use, and Make Them" by R. Newton & Margaret L Mayall, printeded in 1958by Charles T. Branford Company in the United States. The book covers the topic of timekeeping and is related to astronomy. It includes newspaper clippings and has a dust jacket. This collectible antique book offers valuable information on sundials, making it a unique and informative addition to any collection focusing on timekeeping and astronomy.