21 books • 6 series
Schroeders Collectible Toys Antique to Modern Pg (Schroeder's Collectible Toys: Antique to Modern Price Guide)
Schroeders' Collectible Toys Antique to Modern Price Guide (Schroeder's Collectible Toys: Antique to Modern Price Guide)
The Collector's Encyclopedia of Fiesta, with Harlequin and Riviera (Collector's Encyclopedia of Fiesta)
Collector's Encyclopedia of Roseville Pottery (Collector's Encyclopedia of Roseville Pottery, #1)