Abstract: A device for housing and retaining objects to be displayed, comprising a fixed upright housing at least one rotating element in the form of a circle segment, the circumference of which consists of an annular edge extending over a center angle such as to define an empty arc with a suitable center angle, the outer surface of the annular edge being provided with teeth extending over a suitable angular section and able to engage with means for transmission of the movement to the said rotating element, so as to cause a rotation of the latter able to bring the free end of the annular edge from a first angular position at a distance from the fixed upright into a second angular position in contact with the said fixed upright and vice versa.