A frieze obtained by folding paper
You can get a frieze of type *∞∞ by folding a strip of paper like a concertina and then cutting it out. From the book Il ritmo delle forme - The rhythm of the shapes.
© matematita
The image belongs to the sections...:
*∞∞ (pm11) (Symmetry)
From "mirrors" (From "XlaTangente")
Further information:
http://specchi.mat.unimi.it/
