The Book of Griswold & Wagner, referred to as the blue book by collectors is the most complete, accurate, and widely used reference and is coveted by collectors. It is now back in its 4th edition with even more pictures, updated values for cast iron cookware and kitchen collecting enthusiasts, and expanded charts. This definitive, encyclopedic guide details durable cast-iron antiques, including cornstick pans, griddles, Dutch ovens, gem pans, coffee grinders and roasters, trivets, molds, broilers, teapots, and much more. Nearly 1,000 photographs document variations of shape, size, dates, moldings, finishes, hardware types, catalog numbers, and markings. There are comprehensive histories of the manufacturers Griswold, Wagner, Sidney Hollow Ware, Favorite, and Wapak, as well as patent lists for meticulous researchers. This is an essential reference for anyone wishing to invest in these timeless treasures.