 The mandible remains in the University's Geological-Palaeontological Institute to this day as "the most valuable object in the natural history collections of the University of Heidelberg".Further finds from the Mauer sand mine are the "Hornstein artefacts", unearthed in 1924 by Karl Friedrich Hormuth, which scholars interpreted as tools of "Homo heidelbergensis".In 1933 Wilhelm Freudenberg discovered a frontal bone fragment which has also been associated with "Homo heidelbergensis".