HC Deb 03 July 1969 vol 786 c115W
14. Sir B. Janner

asked the Postmaster-General whether he is aware of the inconvenience caused by the requirement in the Post Office Guide that any insured package must bear a distinct impression of the same private device or mark of the sender thereof; and whether, in view of the impracticability of this provision, he will arrange for its withdrawal at an early date.

Mr. Joseph Slater

The sealing requirements for insured packets are prescribed by international agreement and we cannot withdraw them without breaching our obligations to other postal authorities. In any case, I have no reason to think that they give rise to undue inconvenience.