Have a look at this very interesting exhibition / Wanderausstellung on
in Basel from November 15 to December 15, 2019. It was also shown in Münster, Baden, and Heidelberg. Further information here.
We really appreciate the following graph from the exhibition, illustrating vividly the difference between scientific excavation and display in a public collection vs. illicit digging and display in a private collection (Illustrationen: Christian Scharfenberg; Idee und Storyline: Julia Linke/Badisches Landesmuseum).