one's own handwriting自筆じひつ直筆じきひつ真筆しんぴつ肉筆にくひつ手書しゅしょof one's own handwriting: 自筆のhumble reference to one's own handwriting: humble reference to one's own handwriting拙筆せっぴつauthor's own handwriting: 著者自身{ちょしゃじしん}の筆跡{ひっせき}