Why the Original Box Matters

Many Japanese works arrive in a fitted wooden box, often of paulownia (kiri 桐) and tied with a flat cord (sanada-himo 真田紐). It is tempting to see it as packaging. In Japan, it is usually treated as part of the work.

• It records the work. An inscription by the maker (tomobako 共箱), or a later attribution by a successor or specialist, can be part of a work's history. See A Beginner's Guide to Box Inscriptions (03).

• It protects the work. A well-fitted box guards against knocks and dust and helps to even out changes in humidity.

• Box and work belong together. Once separated, a box and its work are difficult to reunite with certainty. Please keep them together, and keep any cloth wrapping, bags or leaflets that came with them.

Handling the box. Carry it from below, not by the cord. Open it on a table and lift the lid gently. Keep the box in the same stable, dry place as the work.

A box is a valuable companion to a work, but it does not by itself establish authorship.