"Gyokusencho" - Gyokusenjo

...Because he maintained a long and extraordinary reputation, there are many works that are said to be in his handwriting, but not many are beyond doubt. The main works are "Byobudodai" (Imperial Household Agency), with a colophon by Fujiwara Sadanobu, "Hakujutsu: Poems of a Relaxed and Happy Life" (Maeda Ikutokukai), which is in the same style as the "Enchin: Imperial Edict of the Posthumous Title of the Grand Priest and Master Chisho" (Tokyo National Museum), which is recorded in historical records as having been written by Hakushi, "Santai Hakushi Shimaki" (Masaki Art Museum), and "Gyokusenjo" (Imperial Household Agency), which is unusually spirited for Hakushi, in that he himself said, "Not like usual." In addition, there are over ten letters, some of which contain kana that are surely indicative of Michikaze's style, but the whereabouts of the originals are unknown today, and only copies can be found in the Shuko Naniwacho, published at the end of the Edo period.

*Some of the terminology explanations that refer to "Gyokusencho" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…永く非常な名声を保ったため，道風の筆跡と称せられる遺品は数多いが，疑いを入れぬものは必ずしも多くない。藤原定信が奥書をした《屛風土代（びようぶどだい）》(宮内庁)，それと書風の全く一致する《白楽天　常楽里閑居詩》(前田育徳会)，道風に書かせたことが史書にしるされている《円珍贈法印大和尚位並智証大師諡号（しごう）勅書》(東京国立博物館保管)，《三体白氏詩巻》(正木美術館)，自ら〈例の体に非らず〉といった，道風としては珍しく気骨のある《玉泉帖（ぎよくせんじよう）》(宮内庁)などが主要なものである。ほかに，10通をこす書状があって，その中には確実に道風の書風をしるべき仮名も存したのであるが，今日原本の所在は不明で，江戸時代末期に刊行された《集古浪華帖》に模刻をみるのみである。…

※「《玉泉帖》」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報