One of the traditional craft materials that are hard to determine in terms of value is the "lacquer." There are various techniques to produce lacquerware depending on the production site, and "genuine" works follow these definitions. Other than dried lacquer, genuine lacquerware from all the regions uses unlacquered wood, such as Japanese zelkova, for the body. However, once the lacquer is applied, the body cannot be observed and obscures inspection.
For example, even if the body was made from a hardened mixture of wood powder and resin, the body cannot be seen once the lacquer is applied and completed, as the texture is not enough to make a determination.
Idea starts from what kind of bones can see on X-ray of lacquer and we were thinking that bone of lacquer tableware should be hard and solid and it should be formed in tree growth rings of cold winter season. Actual growth rings from real Japanese zelkova tree were traced and converted into pass-data, restored a zelkova, and created 3D design data according to actual Gorokuwan(traditional lacquer bowl) process. This data was extracted via 3D printers at once and then visualized hard and solid parts with white color like bones. Finish processing was done by very skilled craftworkers.
This piece of work is to question about the true identity of lacquer by visualizing the foundation(bone) of it.

joint development / Stratasys Japan