(Toys & Games) Waverly Toy Works, C.M. Crandel Proprietor. Multicolored ad design showing "Pigs in Clover" Ball-in-a-Maze Puzzle, on cover franked with 2¢ carmine tied by 1898 Waverley, N.Y. duplex postmark; slight cover edge toning, still Very Fine. Estimate  $150 - 200. In early 1889 Charles Crandall invented a new game that swept the country simply called "Pigs in Clover". This was among the first or at least the most popular ball-in-a-maze puzzle in America. $0 (Image)