All the Cha wan ( Japanese for tea bowl ) exhibited by nag Gallery are unique examples brought over from Japan. Each bowl may follow a traditional technique, and each are individually thrown by a potter from the region, with a unique glaze and finish. 

It is an old tradition in Japan for the potter to give a name to the bowls they make, based on the technique, the name of the glaze, the shape and the colour.

On the lid of the box that the bowls are presented in and reading from the right side to the left side, will be written first the traditional technique of making the bowl, then the name given by the potter to the bowl and thirdly the description of what the bowl is. For example -

粉引 ko hi ki name of traditional technique
静 shi zu ka translated as silent or calm 
茶 碗 cha wan tea bowl

The box that the cha wan tea bowls traditionally come in is called Kiri Bako, kiri translated as tree, bako translated as box. The wood the box is made from is paulownia tomentosa, known as the  Empress tree, Princess tree or Foxglove tree;  a native to central and western China, which repels small insects and retains a level of humidity in the box.

The yellow material that the cha wan bowl is wrapped in inside the box, is called the Ukon Nuno . Ukon translated as materials of natural dye, Nuno translated as fabric. Ukon is also the name of turmeric which is used to dye the material. Turmeric repels insects and protects the cha wan from mold, a traditional wisdom passed down from generations.