Convertible and extendable Authentico Bookcase. Diversity is the dominant feature of the Authentico Bookcase. Irregularly placed boxes of Sheesham wood create a bookcase which appeals to its unconventional character. And the best thing about it is that it can be extended indefinitely. In this way, it can be adapted at any time to individual requirements. Established conventional forms have been deconstructed, and the result is original but also very practical pieces of furniture. The Authentico series contains a wide range of articles for the living room, bedroom, the dining room and the office. There are also countless possibilities for the kitchen and the bathroom.