"Estudio de hipercubo", 1976, by the artist José María Yturralde.
The image recalls the symmetrical 2d projection of a hypercube, but also a parallel 3d projection, and also the classical drawings of polyhedra by Leonardo.
You can see another drawing of a hypercube by the same author; or a flying structure with the shape of the net of a hypercube; or a work of an other kind.
© José María Yturralde
foto di José María Yturralde
The image belongs to the sections...:
Painting (Anthology of images)
Projections of a hypercube (4D geometry)
Suggestions about 4d from 3d-world (4D geometry)
Various matters about hypercube (4D geometry)