International convention for the abolition of import and export prohibitions and restrictions, November 8th, 1927. Execution of recommendations no. 3 of the Final act of the Conference, signed November 8th, 1927. Protocols concerning the export of hides, skins and bones, drawn up the by the meeting of representatives of states interested, signatories to the international convention of November 8th, 1927, held at Geneva from March 14th to 16th, 1928 ..