 In-depth consideration was given to technical and ergonomic aspects of the product and to easy user-identification of its parts, resulting in a unified concept, based on careful analysis rather than on an a priori formula.Nizzoli’s two best-known design projects are the Olivetti typewriter Lexicon 80 (1948) and the Necchi Mirella sewing machine (1957).He also designed the iconic Aurora 88 fountain pen (1948).