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A hub with cyclic group of symmetry of type C4. We can compare it with another hub; or w...
A rosette with dihedral symmetry of type D4, painted on glass and realized by the students...
Sgranatrice meccanica, conservata presso il Museo degli Usi e Costumi della Gente Trentina...
An artificial gelsomino (Trachelospermum jasminoides), an ornamental evergreen creeper tha...
A rosette with dihedral symmetry of type D5 and some patterns of type *442 and 4*2 in via ...
Particolare di un pavimento, a Roma, nella basilica di S.Maria in Trastevere. Nel riquadro...
Rosone con simmetria diedrale di tipo D6, su un arco da culla in legno del XIX secolo cons...
A house in via Caccianino, in Milan, is decorated with rosettes (a cyclic rosette of type ...
An example of rosette with dihedral symmetry of type D6 on a gate in viale Lombardia, in M...
Mu Torere, a game of strategy from New Zealand, of the Maori people.The chessboard has dih...