Until the invention of the first artificial mass at the end of the 19th century, humans were capable of making good use of all natural materials. Worked bone has properties that are very similar to solid plastic and is therefore suitable for many types of tools, from the sewing needle onwards. The displayed tool comes from the Mesolithic and Neolithic cave site of Podmol near Kastelec at the karst edge, where it had been preserved beneath thick earth sediments.
flint arrowheads show technological progress in the making of stone tools, since the so-called nibbling retouch was used for sharpening the edges. The two displayed arrowheads were mounted on the wooden shaft of an arrow, which was used either for hunting or for battle.