diplomatic bag; diplomatic pouch
A sealed container used for official diplomatic correspondence, protected by international law from inspection or seizure.
See also: 外交行嚢
Diplomatic bags are exempt from customs inspection.
An older or less common term for diplomatic bag; 外交封印袋 is the more standard modern term.
Compound of 外交 (diplomacy) + 封印 (seal) + 袋 (bag). The term is a direct translation of the English 'diplomatic bag'.