This handsomely illustrated coffee-table book chronicles, decade by decade, the rich history of the Tonka Toy company, from its modest beginnings in an old Mound schoolhouse to the first exhibition of prototypes. The No. 100 Steam Shovel and No. 150 Crane and Clam were introduced at the 1947 New York City toy fair. The book concludes at the 1991 purchase by giant toy retailer Hasbro.