After the recent discovery of several well-preserved hand axes of Acheulean age dating to approximately 500,000 years ago, as well as a phallus shaped object coated with traces of ocre (see Fundsache Homo erectus, Archaeology Online 2012) a number of hammerstones were also recovered... and have clear use marks on the longitudinal edges. However, after close examination... a quartzite hammerstone was shown to have a peculiar line of reddish ochre along a well-defined and particularly striking side. Natural sediment retention in the cobble itself was excluded, and it suddenly became obvious that what was being observed, was the outline of...