Blok krzemienny 109 [brak danych] paleolit schyłkowy?
Chocolate' flint : 3D documentation Upper Jurassic
Banded flint : 3D documentation Upper Jurassic (Oxfordian/Kimmeridgian)
Chocolate' flint : 2D documentation Upper Jurassic
Banded flint : 2D documentation Upper Jurassic (Oxfordian/Kimmeridgian)