A computer tomograph from the Faculty of Civil Engineering and Resource Management of the AGH University of Science and Technology in Krakow was used to examine a subject from about 27,000 years ago.   

The scientists analyzed a unique artefact made of deer antlers, discovered in the Biśnik cave in the Zawiercie district. It dates back from the Upper Paleolithic period and was made about 27 thousand years ago. Its surface shows traces of shaping and using. The tool was probably used as a pestle for treating flint raw material. The finding is one of the oldest examples of such objects discovered in Poland.

Research is conducted by Dr Justyna Orłowska with a team from the Department of Prehistory, Institute of Archeology, the Nicolaus Copernicus University in Toruń.

Works were carried out by Dr Eng. Daniel Wałach and Eng. Grzegorz Kaczmarczyk, using an X-ray tomograph at AGH. They proved that the tested antlers were used by humans and actually acted as a tool.