Marking Pins with Glass Beads
Mysterious “tombo-dama” (glass beads), their production method already established by the Nara period (which began in 710 A.D.), using closely-guarded techniques. It is said that in the Edo period (1603-1868 A.D.), with much trade arriving from China and Europe, glass-making techniques from abroad were also entering the stream, and the production of “tombo-dama” became even more varied.