真しん筆ぴつ

noun

autograph; one's own handwriting; personal note

Refers to something written in one's own hand, often used for authenticity or personal touch.

• この手て紙がみは彼かれの真しん筆ぴつだ。

  This letter is in his own handwriting.

• 真しん筆ぴつの署しょ名めいが入はいっている。

  It has an autograph signature.