Abstract
The aim of this paper is to clarify differences between portfolios of NAMA (National Archives of Modern Architecture) and NMWA (The National Museum of Western Art) and their relations to original drawings of FLC (Fondation Le Corbusier). The result is as follows: 1) There are differences that are beyond measurement errors in some plate layouts. 2) The colorings of NAMA’s and NMWA’s show subtle differences, both of which are different from those of the drawings of FLC. It suggests that both colorings are independent from each other. 3) Finally, we judge that both portfolios have different origins with different colorings.