The most important and valuable treasures are the Genji Monogatari Emaki, three Heian period illustrated handscrolls of "The Tale of Genji", dating to the 1130s. Along with one other scroll from the same set, now preserved at the Gotoh Museum, they are the earliest extant depictions of the epic tale and are National Treasures of Japan. The scrolls are so fragile that they are not permanently displayed to the public. Since at least 2001, they have been displayed in the Tokugawa Museum for one week in November.