Flow Blue bowl With Crazing Patina Primitive Upper Hanley Pottery England Upper Hanley England" refers to the location of the Upper Hanley Pottery Co., an earthenware manufacturer in Hanley, Stoke-on-Trent, England, which produced flow blue pottery similar to the the one in this listing. Location and History: The Upper Hanley Pottery Co. operated at the Upper Hanley Works on High Street in Hanley from approximately 1894 to 1902. Products: They were known for producing semi-porcelain items using the "flow blue" technique, which involved a blurred cobalt blue transfer pattern. Patterns: The company produced various patterns, including "Dahlia" and "Ceice". Identifying Marks: Their common style mark often included the words "Upper Hanley" and "Semi Porcelain" within concentric circles, topped with a coronet crown. This piece shows signs of use, crazing and patina are present. Please see pictures.