An Australian researcher found out what the Conical Spear Butt of Navan really was -- by 3D printing it, and jamming it into a horn. Share on Facebook (opens in a new window) Share on X (opens in a ...

3D printing technology has been used to show a Bronze Age artefact, thought to be a spear butt, is actually part of a musical instrument. The artefact, known as the Conical Spear Butt of Navan — found ...