箱はこ書がき

noun

box inscription; authentication note on a box

Refers to an autograph, signature, or authentication note written on the box (usually a wooden storage box) that contains an artwork, such as a tea bowl, hanging scroll, or ceramic piece. Common in art and antique contexts.

• この茶ちゃ碗わんの箱はこ書がきは、有ゆう名めいな茶ちゃ人じんの筆ふでによるものだ。

  The box inscription on this tea bowl is by a famous tea master.

• 箱はこ書がきがあると、美び術じゅつ品ひんの価か値ちが上あがることが多おおい。

  Having a box inscription often increases the value of an artwork.