wire (Gródek) - chemical analysis Neolithic
wire (Gródek) - metallographic analysis Neolithic
wire fragment (Kurcewo) - chemical analysis II Bronze Age
Cretaceous flint from Rijckholt-St.Geertruid mine : 2D documentation Upper Cretaceous (Maastrichtian)
Cretaceous flint from Rijckholt-St.Geertruid mine : 3D documentation Upper Cretaceous (Maastrichtian)