Modular bookcase, shelves composed of cubes facets of glass desselles

The photos speak for themselves, these 12 glass mosaic cubes allow all possible and imaginable compositions to create one or more book storage modules or trinkets. Some splinters and gaps due to the use and age of the cubes. I attach to the sending of the cubes replacement desselles. Plywood and mirror mosaic. Each module measures 30x30 cm and 25 cm deep. On the rectangular photo of 6 cubes wide by 2 high the library measures 180 X 60 cm (fatally; -). One cube weighs 4 kg.