The two daggers with a broad tang, one of chert and the other of copper, were recovered from the River Ljubljanica and share an almost identical form. In the millennia-long process of metal replacing stone, the copper artefacts often imitated those of stone. The elaborate bifacially worked stone dagger was harder, while the copper dagger was less prone to damage. Copper was rare and expensive, which presumably made this copper dagger primarily a symbol of prestige.

Turk, Peter and Turk, Matija, 2019: The Earliest Stories from the Crossroads, Ljubljana, Fig. 192, pp. 150–151, 247.