A hobbyist using a metal detector in Poland's Gdansk Forest District found a bronze sword standing upright in the ground, prompting archaeologists to recover the artifact.
Researchers dated the well-preserved blade to the late Bronze Age—about 2,700 years old, or roughly 900 to 700 B.C.
Heritage officials took custody of the sword after the finder reported it, and authorities said it will undergo further study before being placed in a museum.