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出典:Wikipedia
出典:『Wikipedia』 (2011/03/05 17:51 UTC 版)
The technology for glass beadmaking is among the oldest human arts, dating back 3,000 years (Dubin, 1987). Glass beads have been dated back to at least Roman times. Perhaps the earliest glass-like beads were Egyptian faience beads, a form of clay bead with a self-forming vitreous coating.
Glass beadmaking