Inside Out Library · ExploreDivina proportione : die Lehre vom goldenen schnitt (1889)Pacioli, Luca, approximately 1445-1517, Winterberg, Constantin, 1841- · Wien : C. Graeser · leaf 370Proportion (Art)Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.More pictures from Divina proportione : die Lehre vom goldenen schnittMore like this