This is the Edo kiriko necklace, crafted by Mr. Toshio Takizawa, one of the 18 (as of a 2014 research) government-acknowledged Edo kiriko Master Traditional Craftsman.
Edo Kiriko is the traditional technique of cutting the pattern on the surface of the glass. It is designated as a Traditional Crafts by both the city of Tokyo and the country of Japan.
posted by Edo-Japan Traditional Crafts
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