After quite a few talks (and even more coffees) with his father Siegfried Schulte, the concept stood: The surfaces of the historical parts were removed, and they were treated with slightly white pigmented wax. Various profiles were covered with gold leaf. 
  

Until now, the old zinc front pipes (many of which were more flat than round, see picture gallery) were painted with gold bronze. However, because the pipes were dismantled by the parishioners themselves at that time, pipes as well as the gold cover looked lamentably battered. 
It was decided to undertake a special treatment: The pipes (among others, the six meter long open 16’) were “bombarded” with glass beads (bead blasting) at a special company and thus obtained their new and very characteristic outward appearance.