3336 Narcotics, inflam- mable substances, etc. INTERNATIONAL AGREEMENTS OTHER THAN TREATIES [62 STAT. imitated in such a way that they could be confused with em- bossed or adhesive stamps issued by one of the contracting countries; (e) To prevent, and, if occasion arises, to punish the insertion of opium, morphine, cocaine or other narcotics, as well as explosive or easily inflammable substances in mail articles in which such insertion is not expressly authorized by the Convention and Agreements. Final Provisions. ARTICLE 74. Effective date and duration of the Convention. The present Convention will become effective on July 1, 1948, and will remain in force for an indefinite period. In testimony whereof, the plenipotentiaries of the Governments of the countries above enumerated have signed the present Convention in one copy, which will be filed in the Archives of the Government of the French Republic, and a copy of which will be delivered to each party. Done at Paris, July 5, 1947. [For signatures, see French text, p. 3188; for romanization, see p. 3416.1
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