Senate executive document. 82d Congress, 2d session. P. Protocol modifying convention of July 6, 1890 concerning creation of International Union for Publication of Customs Tariffs, message from President of United States transmitting certified copy of protocol, signed Brussels, Dec. 16, 1949, modifying convention of July 5, 1890, concerning creation of International Union for Publication of Customs Tariffs, regulations for execution of convention Instituting International Bureau for Publication of Customs Tariffs, and memorandum of signature.