erent countries or in neutral countries which have received belligerents on their territories.
Correspondence intended for prisoners of war or despatched by them is likewise exempt from all postal charges, not only in the countries of origin and destination, but in intermediary countries.
Belligerents received and held in a neutral country are assimilated to prisoners of war, properly so-called in so far as the application of the above-mentioned stipulations is concerned.
5. Articles posted on the high seas in the letter box on board a vessel or placed in the hands of postal agents on board or of the commanders of ships may be prepaid by means of the postage stamps, and according to the tariff of the country to which the said vessel belongs or by which it is maintained. If the mailing on board takes place during the stay at one of the two terminal points of the voyage or at any intermediate port of call, prepayment can only be effected by means of the postage stamps and according to the tariff of the country in the waters of which the vessel happens to be.
Article 12
Postage kept by collecting country
1. Each Administration keeps the whole of the sums which it collects by virtue of the foregoing Articles 5, 6, 7, 10, and 11, exceptions being made in the case of the credit due for the money orders referred to in paragraph 2 of Article 7, and also in regard to reply coupons (Article 11).
2. Consequently, there is no necessity under this head for any accounts between the several Administrations of the Union, subject always to the reservations made in paragraph 1 of the present Article.
3. Letters and other postal articles cannot be subjected, either in the country of origin or in that of destination, to any postal tax or postal fee at the expense of the senders or addressees other than those contemplated by the Articles above mentioned.
Article 13
Special-delivery articles
1. At the request of the senders, all classes of articles are delivered at the addresses by a special messenger immediately on arrival, in those countries of the Union which consent to undertake this service in their reciprocal relations.
2. Such articles, which are marked "express," are subject to a special charge for delivery; this charge is fixed at 30 centimes, and must be fully paid in advance by the sender, in addition to the ordinary postage. It belongs to the Administration of the country of origin.
3. When an article is destined for a place where there is no Post Office authorised to deliver correspondence by express messenger the Postal Admin-
