A hub with cyclic group of symmetry of type C7 (if we ignore a few things...). We can co...
A hub with cyclic group of symmetry of type C7. We can compare it with another hub; or wi...
The decorations of this pot-holder are an example of cyclic group of symmetry of type C7 (...
Un rosone con simmetria ciclica di tipo C7 su un portale in pietra, Pergine Valsugana (Tn)...
