TONBODAMA / JAPANESE GLASS BEADS
About 1,300 years ago / 700s / Nara Period (710–794)
Glass beads—the ancestors of today’s tombodama—reached Japan through ancient exchange with continental Asia and regions farther west. By the Nara period they were treasured as ornaments and luxury objects. Domestic glassworking expanded in the Edo period, and patterned beads came to decorate netsuke, hair ornaments and personal accessories.
In contemporary Japan, tombodama are accessible as jewelry, yet workshops devoted to reconstructing old beads or preserving Edo-period methods approach the craft almost like historical research. Because beads can be made one by one at a small flame, Japan also has a lively culture of independent studio artists.
Their greatest surprise is that the decoration is not simply painted on the surface. Patterns are built inside molten glass by layering, winding and stretching tiny glass rods. A flower only a few millimeters wide may contain an intricate internal structure that becomes visible only after the bead is formed.