bead (Brześć Kujawski) - chemical analysis Neolithic
pin (Bychowo) - chemical analysis IV-V Bronze Age
Villemaur-sur-Vanne : 3D documentation Cretaceous
Chocolate' flint : 3D documentation Upper Jurassic
Chocolate' flint : 2D documentation Upper Jurassic
Villemaur-sur-Vanne : 2D documentation Cretaceous