If you walk a bit further south over the Closweg bridge into the district of Vogelgesang, you will find this sculpture group at the first crossing on the right - only that these days there is an old clothes container in front of it, and the back bit is fenced off. It's a shame how neglected this place has become.
I have never found out where these sculptures come from and why they are placed there. It consists of a wing, two feet, one hand, two columns and a ring-shaped basin.