After completing my doctoral program at the Graduate School, I began a reconstruction project of the pre-Christian glass bowl known as the “Sandwich Gold-Glass Bowl,” held in the British Museum.

The project was inspired by a lecture given during my student years by my mentor, Sayoko Eri. I was deeply intrigued to learn that kirikane—previously understood as a uniquely Japanese technique—had in fact existed outside Japan in earlier times.

This type of vessel, collectively referred to as “gold sandwich glass,” features a structure in which gold leaf decoration is embedded between two layers of transparent glass, and examples have been excavated across various regions of Western Europe.

Although the decorative techniques of these objects had not been sufficiently analyzed or reconstructed in detail, my own practical reconstruction research made it possible to clarify the differences in foil techniques found among the many surviving gold sandwich glass works.

Furthermore, in collaboration with Dr. Yasuko Fujii, a historian specializing in Roman-period glass decoration, I undertook research exploring the origins of kirikane—an endeavor that had not previously been achieved.

These achievements were highly regarded, and in June 2023 I was invited by the British Museum to give a lecture.