Although outdated in some respect, this reference is an interesting addition for anyone fascinated with the history.
Beckwith, Arthur. International Exhibition, London, 1871: Pottery. Observations on the Materials and Manufacture of Terra-cotta, Stoneware, Fire-Brick, Porcelain, Earthen-ware, Brick, Majolica, and Encaustic Tiles, Remarks on the Products Exhibited. (New York: D. Van Nostrand, 1872.)
Beckwith, Arthur. International Exhibition, London, 1871: Pottery. Observations on the Materials and Manufacture of Terra-cotta, Stoneware, Fire-Brick, Porcelain, Earthen-ware, Brick, Majolica, and Encaustic Tiles, Remarks on the Products Exhibited. (New York: D. Van Nostrand, 1872.)