The Eifel - Wuppertal-Elberfeld - Mainz Connections of the Archaeologist Adolf Schulten and the Painter Curtius Schulten : a Newly Attributed Painting in Mainz of the Celtiberian and Roman Site of Numantia, Spain - Dobson, Mike (Archäologisches Korrespondenzblatt, 53, 2 (2023), 2023)