Another test to get the number of faces down. When creating this with a modeling application, that would be a very low poly model.
Using 3DF Zephyr, I tried to selectively reduce the face count on the faces to keep the edges sharp, but the reduction filter creates very bad 3D wireframe, so it is necesarry to run the retopology filter, which creates a homogenous wireframe for the whole model, increasing the face count of the planes again.
The sentence on the object says in German:
> Wir sollen heiter Raum um Raum durchschreiten
>
> Und jedem Anfang wohnt ein Zauber inne
In English maybe something along these lines:
> We should walk happily from space to space
>
> And every beginning contains magic
location: https://goo.gl/maps/jq2TmTSdcPv
Artist (maybe)
W. S. Reiser
A. D. MMII