Koransha Sanshiki Yuzamashi Tea Cup Set of 4 Found in my grandfather's display cabinet. I'm selling them because I don't use them. These are Koransha's beautiful white porcelain tea cups, thin and light, making them easy to handle. No original box. They will be wrapped in cushioning material and shipped in a separate box to prevent breakage. This is a set of 4 Koransha Sanshiki Yuzamashi tea cups. The transparent white porcelain is painted with indigo and red, depicting the softly drawn Sanshiki (Smilax china). They enhance the color of the tea poured into them.