factory and produces brick products. References Sources Chipman, Jack. Collectors Encyclopedia of California Pottery, Second Edition. Collector Books (1998) Chipman, Jack. California Pottery Scrapbook: Identification and Value Guide. Collector Books (2004) Snyder, Jeffrey B. Pacific Pottery, Tableware from the 1920s, '30s, '40s ...and more! Schiffer Pub Ltd (2000) Stern, Bill. California Pottery: From Missions to Modernism Chronicle Books (2001) External links Pacific Clay Products Note: Company records or archives regarding the dinnerware division no longer exist. Ceramics manufacturers of the United States Companies based in Riverside County, California Kitchenware brands