61 STAT.] MULTILATERAL-POSTAL UNION-SEPT. 25, 1946 5. Administrations which adopt, in a general manner, a reduced registration fee for all articles other than letters and post cards, will not be obliged to observe the formalities prescribed by the last part of the preceding Section. ARTICLE 10 Inquiries Complaints or requests for information regarding any article will be charged with a fee equal to that established in the domestic regimes of the contracting powers, except when such domestic fee is higher than that established by the Universal Postal Convention, in which case 64 Stat. 2049. the latter will govern. ARTICLE 11 Articles subject to customs clearance 1. The application of the label, C-1, established by the Universal Postal Convention, to articles of correspondence whose contents are 4Stat.2111 . subject to customs duties in the country of destination, is obligatory. The use of the declaration, C-2, is optional for the aforementioned articles. 2. Nevertheless, for unsealed matter, except small packets, the use of neither of the documents mentioned in the foregoing Section is obligatory, without prejudice to customs clearance by the country of destination. ARTICLE 12 Weight and dimensions 1. The limits of weight and dimensions of articles of correspondence will conform to those fixed by the Universal Postal Convention, with 4 Stat. 209. the exception of prints whose weight can attain 5 kilograms, or even as much as 10 kilograms when it is a question of works in a single volume. However, articles with a weight greater than 5, but not ex- ceeding 10 kilograms will be accepted even when it is not a question of works in a single volume, if previous agreement is made between the Administrations concerned. 2. Articles in roll form, when it is a question of indivisible objects, ticleinroll form. may measure as much as 120 centimeters, adding their length to the diameters of both bases, but the greatest dimension may not exceed 100 centimeters. ARTICLE 13 Franking privilege 1. The contracting parties agree to grant the franking privilege, in their domestic service and in the Americo-Spanish service: a) To correspondence relative to the postal service exchanged between Administrations of the Postal Union of the Americas and Spain; between these Administrations and the International Office of Montevideo; between the same Administrations and the Transfer 3509
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