The Wilton Cake Pan Book Bible 502-940 from 1971 is an antique baking set of two aluminum pans designed in the shape of a book, specifically themed for Communion. Each pan measures 8 inches in length, 8 inches in height, and 6 1/2 inches in width, with a depth of 1 1/2 inches. This two-piece set has a capacity for one cake mix and features a surface coating of aluminum for easy cleaning, making it a unique and collectible addition to any kitchen or baking collection.