IMPERIAL AND FOREIGN POST
ENCLOSURES
71
The sender may enclose in a packet of printed papers, a card envelope or wrapper bearing his address and having a postage stamp of the country of destina- tion affixed for the prepayment of the return postage. In the case of articles falling under the category of section 8 above, the relative invoice. may be enclosed and, with proofs of printing, whether corrected or not (section 5 above), the copy itself may be sent.
INADMISSIBLE ARTICLES
The following articles are not admissible:
Postage stamps or forms of prepayment, whether obliterated or not, or any paper representing a monetary value;
Receipts, invoices and statements of account;
Blank paper, note paper or envelopes (with or without printed address) and all articles of stationery pure and simple; exceptionally, blank forms not exceeding three of a kind or three of each kind of dissimilar forms may be admitted;
Gramophone records and cinematograph and
photographic films.
LIABILITY TO CUSTOMS DUTY ABROAD
Advertising matter is subject to Customs duty on entry into certain countries, notably Australia, New- foundland, New Zealand and South Africa (see pages 89 and 90). In some cases books also are liable to duty.
Printed matter is not however debarred from transmission at the printed paper rate on account of liability to Customs duty.