Ernst Skofteland said he asked a team of archaeologists digging on a farm near his home to look at the sword, which he discovered at the side of a lumber road in a forest area four years ago, and they told him it dates from around 1100-900 B.C., Aftenposten reported Friday.
"When they told me how old it was, I thought they were kidding me," Skofteland said. He said he turned the sword over to government authorities for study.
Experts said about 20 similar swords have been discovered in Norway.
2014: The Year in Music [PHOTOS]