Abstract: A display case for exhibiting objects is described. The display case has a support base for a display plane and for at least a first shell exhibiting at least a crystal delimiting wall, at least a first linear guide for the support of the first shell, the first linear guide exhibiting a part of fixed guide solidly constrained to the base and a part of mobile guide solidly constrained to the first shell, the part of fixed guide exhibiting at least a first rail for one or more first support bearings solidly constrained to the part of mobile guide, the part of mobile guide exhibiting a rail, for one or more second support bearings solidly constrained to the part of fixed guide. The display plane being associated to the part of fixed guide by means of one or more third bearings for the support of the display plane.

Abstract: The invention concerns a window unit for display, protection and preventive conservation of an object of limited thickness, in particular a work of art such as a painting, a bas-relief, a tapestry or similar. It comprises a case with a back (32) and a front door (31) coupled together so as to be able to have the case (30) take up an open state, in which the object (D) is not protected and can be inserted into or removed from the case (30), and a closed state, in which the object (D) is protected and can neither be inserted into nor removed from the case (30), in which the front door (31) is provided with a transparent front panel (48) through which the object (D) is visibilé from the front in the state with the case (30) closed. The window unit is characterized in that the back (32) is provided with a transparent rear panel (50) through which the object (D) is visibile from the rear in the state with the ease (30) closed.