banko-yaki teapot

Banko ware or Banko-yaki (萬古焼) is ceramics made in Yokkaichi (四日市) of Mie prefecture. It is famous for producing good Japanese teapots.

My friend K san had carelessly dropped a lid of a ginka-kyusu (銀化急須) of Banko yaki.  'ginka' means that the color has changed to silver after firing.

The Banko-yaki kyusu (teapot) normally doesn't use any glaze. And when firing it at a very high temperature the surface of ceramics gets metallic touch.