noun
autographs (brushwork) of a departed person; posthumous calligraphy
Refers to calligraphy or brushwork left behind by someone who has passed away, often valued as a memento.
この掛け軸は祖父の遺墨です。
This hanging scroll is my grandfather's posthumous calligraphy.
展覧会では著名な作家の遺墨が展示されていた。
At the exhibition, posthumous calligraphy by famous writers was on display.