Charles-Édouard Jeanneret, known as Le Corbusier, was a Swiss-French architect, designer, painter, urban planner, writer, and one of the pioneers of what is now called modern architecture. "Le Modulor" Roller Ball pen based upon the famous architect, designer, urbanist and writer's "Le Modulor" theory, formulated in 1942 to facilitate architecture on a human scale, the pen features a black background with silver imagery and Le Corbusier's signature. The pen comes with one black roller ball refill. The pen is presented in an ACME metal box with a black sleeve.