Antique Stoneware Cobalt Blue Crock Vase Jar 10. The item "Antique FB Norton Stoneware Cobalt Blue 2 Gal Crock Primitive Nice!Leaf Design" is in sale since Wednesday, July 31, 2019. This item is in the category "Antiques\Decorative Arts\Ceramics & Porcelain\Crocks". The seller is "captain831" and is located in Ashby, Massachusetts. This item can be shipped to United States.