Fratelli Mannelli became famous in the 1920s and 1930s for its Art Deco furniture, characterized by bold geometric shapes, luxurious materials and meticulous attention to detail. Fratelli Mannelli's designs were showcased at prestigious international exhibitions such as the Milan Triennale and the Paris Exposition Universelle.
Fratelli Mannelli's style remained influential until the late 1950s, after which the company began to concentrate on the production of more conventional furniture. However, its legacy in the world of interior design remains important today, and Fratelli Mannelli furniture is still highly prized by collectors and interior design enthusiasts.