Der Ursprung der Gottesidee : eine historisch-kritische und positive Studie - Schmidt, Wilhelm, 1868-1954 (Aschendorff, 1926)
Each volume has also special t.p.
Folded maps in pocket v. 6.
Vol. 1 was first published in French under title "Origine de l'idée de Dieu," in Anthropos, bd.III-V, 1908-1910.