Set of 4 vintage CD shelves with glass doors, France 1990

There are three exactly identical and a fourth slightly different in size and color (see photos). The three that are identical can be assembled to form a single piece. The measurements indicated correspond to the three modules that are identical. The module that is different is only about 2 or 3 cm large. Very good condition with very slight traces of use clearly visible in the photos. See the detail photos since they are part of the item description. Any existing defects (if any) are indicated.