Copper tongue dagger located in the cave of Urtao II (Oñati, Gipuzkoa). It has a triangular blade with an oval tip, bevelled on both sides. It is biconvex, more levelled at the tongue, which is trapezoidal-shaped. This dagger, together with another smaller one and five flint arrowheads, was found together with the burial remains placed in the cave in the late Chalcolithic period or the early Bronze Age (4000-3500 BP).
Armendariz, Ángel. Excavación de la cueva sepulcral Urtao II (Oñati, Gipuzkoa). Munibe, 1989. 45-86
Inventory number: UII.6G.172