A rosette with dihedral symmetry of type D7, that recalls the rosette which can be seen on...
In Via Caccianino, in Milan, a rosette with a dihedral symmetry group of type D7.
A hub with a dihedral group of symmetry of type D7 (if we ignore the central mark...). Fro...
A rosette with dihedral symmetry of type D7 in this church in Merano (Bolzano).
A hub with a dihedral symmetry group, a D7 group - if you ignore a few things… We can c...
An example of a rosette with a dihedral symmetry, D7. This picture has been used in the bo...
*7. (D7)