Black Bizen was created by applying black soil to the surface.
 The melted pine ash, combined with the composition of the soil, showed a complex change.
Size width 9 cm height 7.5 cm
      Black Bizen was created by applying black soil to the surface.
 The melted pine ash, combined with the composition of the soil, showed a complex change.
Size width 9 cm height 7.5 cm