2716 UNIVERSAL POSTAL UNION. June 28, 1929. taira. Si ce bureau constate que Ie poids reel indiq'ld differe de plus de SO grammes dupoids annonce, il rectifie 1& feuille d'avis O'U 1'lJiquetle et signale immediate- mentl'erreur au bureau d'echange expediteur par bulletin de verifi- cation; 'Unt copie de ce lndletin est adressee, le cas echeant, a chaque Office intermediaire. Si les differences de poids con::;i:,atees . re stent dans les limites precitees, les indications du bureau expedi- teur sont tenues pour valables. ARTICLE 18. Liste des dep~hes-avion closes. to~!\~~g:r maI1s AussiMt que possible, et, en tout cas, .dans un delai de quinze jours. apres chaque periode de statistique, les Administrations qui ont expedia des dep~ches avion closes envoient Ia liste de ces dap~ches aux differentes Ad- ministrations dont elles ont em- prunM les services aeriens, y compris, Ie cas echeant, celle de destination. ARTICLE 19. Air mail disp&tches. Etabliasement des releves A V 3 et A V 4- des dep~ches-alVion. Preparation of cer· I. -Pendant les periodes de taIn forms, etc. statistique, les Administrations intermediaires prennent note,dans Poll, p. 2730. un releva conforme au modele A V 3 ci-annexa, des poids in- dilJ:ld.s sur les etiquettes ou sus- cnptions exMrieures des dep~ches aVlon qu'elles ont reacheminees par la voie aenenne au delA des frontieres de leurs pays. n est dresse un releve pour chaque bureau d'echange expediteur de dep~hes-avion. 2. - Les Administrations de reception des de~hes-avion qui Q,8surent, par la voie aemnm, 16 l'Mcheminement des correspon- dances-avion q:u'eUe8 connnnenl, soit dans leur r~u internet soit au delA des frontieres de eurs PoC, p. 2731. pays, dressent un releve conforme au modele A V 4- ci-annexa, d'apres les indications figurant dans les feuilles d'avis. n est destination. If that office finds that the actual weight indicated differs by more than 20 grams from the weight announced, it corrects the letter bill or label and immediately points out the error to the dispatching office by bulle- tin of verification; a coPy of that bulletin is sent to each mtermedi- !!.te Administration, if occasion arib~S. If the differences of weight detected remain within the limits above mentioned, the indications of the dispatching office are considered as valid. ARTICLE 18 List of closed air mails As soon as possible, and in any case within a period of 15 days after each statistical period, the Administrations which have dis- patched closed air mails send a list of such dispatches to the different Administrations whose air services they have used, in- cluding that of destination, if occasion arises. ARTICLE 19 Preparation oj Forms A V 9 and A V 4- for air-mail dis- patches 1. During the statistical peri'- ods, the intermediate Administra,. - tions take note, on a form agree- ing with Model A V 3 hereto ap- pended! of the weights indicated on the abels or outside addresses of the air-mail dispatches which they have reforwarded by the air route beyond the frontie1'8 'of their countries. A statement is made up for each exchange office dispatching air mails. 2. Administrations receiving air mails, which assure the reforward- ing of the air-mail correspondence which they contain by the air route, either in their domestic service or be,ond the frontie1'8 of their countries, prepare a state- ment conforming to Model A V of hereto ap{»8nded, in accordance with the Indications figuring in the letter bills. The eame pro-
