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A decoration made with a frieze 2*∞ on a wall in via Tiepolo in Milan.
A piece of lace with a cyclic symmetry group of type C6.You can see an other one.
A hub with cyclic group of symmetry of type C7. We can compare it with another hub; or wi...
A frieze of type *22∞ in this decoration of Islamic art in Kashgar (China).
A frieze of type *∞∞ on a gate of the palace of the University, in via Festa del Perdo...
The floor of the fifteenth century palace Cavalli Franchetti, restored at the end of the n...
In Via Caccianino, in Milan, a rosette with a dihedral symmetry group of type D7.
Un rosone con simmetria diedrale, di tipo D8, sul soffitto della sala da pranzo di un albe...
The type of symmetry of this floor in the Certosa di Calci (Pisa) is o if we consider the ...
A rosette with dihedral group of symmetry of type D16 (or D8 if we consider the external p...
