Prądnik is a name given to flat flint tools produced using multiple techniques. They are irregular in shape: they have a processed edge and a thicker part to be used as a handle. In the case of the knife on display, processing consisted in separating small flat fragments from the tool’s edge. This technique requires high quality flint and a highly skilled craftsman. It was used in many areas and for long periods of time from the Lower Paleolithic Period until the Iron Age. Flint knives are characteristic of the Micoquien culture which is connected with Neanderthals. The object on display was discovered during excavations in the Ciemna Cave which the Archaeological Museum conducted in the 1960s. The site is the most prominent site documenting Neanderthals’ settlement in Poland. The Prądnik River flowing below the cave gave its name to these characteristic objects.