Juichimen Kannon-zo (the statue of Eleven-faced Kannon) painted in color on a silk canvas in the collection of Nara National Museum, which is a leading Buddhist painting of the Heian period, used to be owned by Kaoru INOUE and then by Takashi MASUDA and was accredited as an important art object on May 20, 1935.
平安仏画の代表作である奈良国立博物館蔵の国宝・絹本著色十一面観音像は井上馨及び益田孝の旧蔵で、1935年5月20日に重要美術品に認定された。