Unlike Northern Celadon under the Northern Song, Longquan ware does not seem to have been used by the imperial court,[REF] although Longquan kilns were used to make the "official" Guan ware, apparently when the Guan kilns could not cope with orders [REF].
Japan was a large-scale and enthusiastic importer, and the beach at Kamakura, the capital during the height of Longquan production, had some 50,000 Longquan sherds, though to have been broken pieces dumped at the end of the voyage from China.