(a) Of signatures to the present Convention and of the deposit of instruments of ratification or accession, in accordance with articles 48, 49 and 50; (b) Of the date on which the present Convention will enter into force, in accordance with article 51. Article 53 The original of the present Convention, of which the Chinese, English, French, Russian and Spanish texts are equally authentic, shall be deposited with the Secretary-General of the United Nations, who shall send certified copies thereof to all States belonging to any of the four categories mentioned in article 48. IN WITNESS WHEREOF the undersigned Plenipotentiaries, being duly authorized thereto by their respective Governments, have signed the present Convention. DONE at Vienna this eighteenth day of April one thousand nine hundred and sixty-one. _____________ 16