Paper.
17. Carbon paper unless certified:
18.
CARBON PAPER COATED WITH WAX AND CONTAINING NO OXIDISABLE, OILY OR FATTY SUBSTANCE,
Oiled paper.
Living creatures,
19. Living creatures except bees, leeches and silkworms; parasites and destroyers of noxious insects intended for the control of these insects and exchanged between officially recognised institutions.
Miscellaneous.
20.
21.
22.
Packets bearing previously used postage stamps or words, marks or designs which are unauthorised and which may reasonably lead the recipient to believe that the packet is sent on Her Majesty's Service.
Packets consisting of or containing two or more postal packets, of the same or of different description addressed to different persons at different addressees.
Articles infringing trade-mark or copyright laws.
23. Pathological objects except by sample post under certain
regulations.
Embarrassing envelopes.
24. A packet enclosed in a wholly transparent envelope, or an aperture envelope that is an envelope with an open (cut-out) panel.
25. A packet enclosed in a window envelope, that is, an envelope with a transparent panel which does not conform to the following conditions:
26.
(a) The panel must extend parallel to the length of the envelope, so that the address of the addressee appears in the same directions; it must be placed so as not to interfere with the application of the date stamp;
(b) The panel must be sufficiently transparent for the address to be perfectly legible even in artificial light, and must take writing. Panels which reflect artificial light are not admissible;
(c) Only the name and address of the addressee must show through the panel and the enclosures must be so folded that they cannot move about in the envelopes, and thus cause the address to be hidden;
(d) The address must be legibly indicated in ink, by type- writing or by a printing process in a deep colour. Articles addressed in copying- ink pencil or lead pencil are not admitted.
A packet enclosed in an envelope of which the address portion has been divided into separate sections for the insertion of successive addresses.
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