Mulitfacetted grinding stone in red quartzite from Hallsberg parish, Närke. This particular type of grinding stone was probably used to produce battle axes and they are primarily connected to the Battle Axe Culture dating around 2700-2300BC
http://historiska.se/upptack-historien/object/95327
Kiriakos Forozidis 3D-teknik Xenter Tumba, 3D-skanning