S.L. 254.1 Art. 6Packing and posting.

(1) Every postal article shall be made up and secured in such manner as is calculated to prevent damage to any other postal article, to any receptacle in which the same is conveyed, or injury to an officer of the postal operator or to any other person who may deal with such postal article.

(2) When an outgoing postal article is posted or tendered or made over in order to be transmitted by post, the sender shall fill up such certificates and documents and affix such labels relating to the contents of the postal article as may be required by the law of the country to which it is addressed, or otherwise as the postal operator transmitting such postal article may direct.

(3) The address on a postal article shall not in any way be obscured or made difficult to read.