Items must be sealed

(1) All insured items must be sealed, but wax sealing is not obligatory. As a minimum requirement all joins and flaps must be sealed with adhesive tape or paper, each strip of tape or paper bearing the sender’s initials or signature or distinctive mark or stamp. These sealing strips should be apparent. It should be impossible to remove any part of the contents without either breaking or tearing the case, wrapper or cover, or forcing two adhesive surfaces apart. Use of string. (2) Where a letter or parcel has been properly sealed it need not normally be fastened with string, but string may be used if desired and need not be sealed. If string is used to ensure the violability of a box, the end of the string must be joined under a wax seal bearing the private device or mark of the sender.