Japanese archaeologists were astonished by the discovery as the artifacts bear a striking resemblance to finds in far-flung areas of northern China.
The two siltstone molds, each 30 centimeters long, 9 cm wide and 4 cm thick, were found overlapping each other. The designs allowed bladesmiths to cast both the handle and the blade as a single piece.
Each mold has two rings, each measuring 2.3 cm across, at the end of the handle that is decorated with saw-tooth and herringbone patterns. Both of those geometrical patterns are commonly seen on the surface of bronze bells unearthed in Japan.
Story: The Asahi Shimbun | Photo: Ryo Kato