UNIVERSAL POSTAL UNION. June 28,1929. 2573 V. Coupons-reponse. V Reply coupons Reply coupons. Les Administrations ont la Administrations have the op- Optional sale. faculte de ne pas se charger du tion of not undertaking the sale of debit des coupons-reponse. reply coupons. VI. Droit de recommandation. Les pays qui ne peuvent pas fixer a 40 centimes Ie droit de :re- commandation prevu a l'article 52, § 2, de la Convention sont autorises a percevoir un droit pouvant s'elever jusqu'a 50 cen- times ou eventuellement jusl[U' au taux jixe pour leur service in- terieur. VII. Services aeriens. Les dispositions C01lUrnant le tro.nsport de la poste au:x lettres par voW aerie nne sont annexees a la Oonvention postale univer- selle et sont considerees comme jaisant partie integrante de celle- ci et de son Reglement. Toutefois, par derogation au:x dispositions gerwral.es de La Oon- vention, La modification de ces dispositions peut etre enmsagee de temps a autre par une Oon- ference comprenant les represen- tants des Administrations directe- ment interessees. Oette Oonference pourra etre convoquee pa,r l'intermediare du Bureau international a La de- mande de trois au mains de ces Administrations. L'ensemble des dispositions pro- posees par cette Oonference de1JTa etre soumis, par l'intermUiaire du Bureau international, au t"Ote des Pays de l' Union. La deci- .sion sera prise a La majorite des voix exprimees. VIII. VI Registration fee Countries which can not fix at 40 centimes the registration fee contemplated by Article 52, Sec- tion 2, of the Convention, are authorized to collect a fee which may amount to as much M 50 centimes, or their domestic regis- tration fee if this is higher. VII Air services Registration fee. Advance permitted. Ante, p. 2553. Air services. The provisions conceminD' the Provisions concern- . egul ----:'!1_ lng, considered part oC transportation of r ar ml:Wl:t by Convention. air are appended to the Universal Postal Convention and are con- sidered as forming an integral part of it and its Regulations. However by exception to the ModUIcations per- al '.. fhCo mltted. gener proVISlons 0 t e nven- tion, the modification of those provisions may be undertaken from time to time by 8. Conference comprising the representatives of the Administrations directly in- terested. That Conferenc~ may be. called oC c17:01, 18 January 2013 (UTC)~~t ~ together thru the mtermediary of reau. the International BUl"E'au, at the request of three at least of those Administrations. AlI the provisions proposed by po=mlssion of pro. that Conference shall be sub- mitted, thru the medium of the Interna.tional Bureau, to the other Countries of the Union, ·to be voted upon. The decision will be made on 8. majority of the votes cast. VIII Frais speciaux de transit par le Special tra~it charges for th.e Trans-Slberian route. Transsiberien Trans-Siberian route Par derogation au:x dispositions de l'article 78, § 1 (Tableau), l' Administration postale de l' Uni.on des Republiques Sovie- By exception to the provisions Special transit fAr . 1 Se' (T bI charges allowed. o tlC e 73, ctlOn 1 a e), Antt, p. 2563. the Postal Administration of the Union of Socialistic Soviet
