Elegant solid wood pantograph wall bookcase, made with an expandable modular system composed of parallel slats joined by turned cylindrical joints. The light and geometric structure draws a sequence of regular rhombuses that can be adjusted in amplitude to fit the available space. The wall fixing points are complemented by brass hardware, an element that provides stability and a warm and refined aesthetic detail. The execution reveals an expert hand in woodworking: the surfaces are carefully sanded, the joints clean, and the modularity perfectly calibrated. The bookshop belongs to a rare type of technical-decorative furniture, linked to the tradition of Italian cabinetmaking in the second half of the twentieth century. The presence on the market of similar examples, attributed to the hand of master cabinetmakers, makes it particularly interesting for collectors and wood design enthusiasts.