pin (Gorszewice) - chemical analysis Hallstatt period
spiral disc (Gorszewice) - chemical analysis Hallstatt period
beads (Tomice) - chemical analysis I Bronze Age
object fragment (Brześć Kujawski) - metallographic analysis Neolithic
earring (Opatowice) - chemical analysis I Bronze Age
object fragment (Brześć Kujawski) - chemical analysis Neolithic
bead (Brześć Kujawski) - chemical analysis Neolithic