There can be no doubt that the Chien-ning mentioned by Mr. Hippisley in 1888, the Kien-ning mentioned in the Guide to Pottery and Porcelain of the Far East
issued by the London Museum, and the Chien-ou of the present Chinese map are one and the same pace. The Chien ware was undoubtedly first manufactured in the region of Chien-ou (formerly Kien-ning Fu) situated on the Min River approximately 160 miles from Foochow. The shifting of the manufacture of this ware to the present age-old kiln sites far removed from Chien-ou was very likely due to the presence of a more ample supply of the peculiar kind of clay in the Chien-yang region from which the ware was made.