noun
letter box; box for holding letters
A box or container specifically for storing letters or correspondence. Often used in historical or traditional contexts.
See also: 文箱
祖母は古い状箱に手紙を大切にしまっていた。
My grandmother carefully kept letters in an old letter box.
noun
letter case; messenger's letter case
A portable case or pouch used by a messenger to carry letters or documents. Suggests a historical or official context.
飛脚は状箱を肩にかけて走った。
The courier ran with the letter case slung over his shoulder.