Article 50

     1. Should the Conference adopt a  new  Convention  revising  this
Convention  in  whole  or  in  part,  then,  unless the new Convention
otherwise provides:
     (a) the  ratification  by a Member of the new revising Convention
shall ipso jure involve the immediate denunciation of this Convention,
notwithstanding  the  provisions of Article 46 above,  if and when the
new revising Convention shall have come into force;
     (b) as  from the date when the new revising Convention comes into
force this Convention shall cease to be open to  ratification  by  the
Members.
     2. This Convention shall in any  case  remain  in  force  in  its
actual  form  and content for those Members which have ratified it but
have not ratified the revising Convention.