Genji monogatari emaki (the Illustrated Handscroll of the Tale of Genji), a national treasure in the collection of the Gotoh Museum, which used to be possessed by Takashi MASUDA, a businessman (known under the name Donnou), was accredited as an important art object on May 20, 1935, and was designated as an important cultural property and as a national treasure at the same time on March 29, 1952 (announced on an official gazette on October 16 of the same year).
五島美術館蔵の国宝・源氏物語絵巻は、実業家益田孝（鈍翁）の旧蔵で、1935年5月20日に重要美術品に認定、1952年3月29日付（官報告示は同年10月16日）で重要文化財、同日付で国宝に指定された。