An amber necklace about 2,300 years old has been stolen from a museum in Ashibetsu, Hokkaido.
The Ashibetsu Police Station of the Hokkaido prefectural police received a report from the Hoshi no Furu Sato Hyakunen Kinenkan museum on Saturday afternoon that the beaded necklace had been stolen.
The necklace is believed to be from the early Zokujomon period and is one of the items excavated from the Takisato remains, which have been designated as a tangible cultural asset by the prefecture.
According to an announcement by the museum, Director Takahiro Haseyama noticed the necklace was missing as he showed a group of people around the facility Saturday morning.
The museum said the necklace comprised three strands of small amber beads, for a total of 762. It had been displayed in a showcase.
"It's an item of academic importance that teaches us about such things as customary practices regarding the dead, but it has almost no monetary value," said Haseyama, who is also curator of the museum.