9. When the subject-matter of suits of any class, other than suits mentioned in the Court-fees Act, 1870, section 7, paragraphs v and vi and paragraph x, clause (d), is such that in the opinion of the ¹[Supreme Court] it does not admit of being satisfactorily valued the ²[Supreme Court] may, with the previous sanction of the Government, direct that suits of that class shall, for the purposes of the Court-fees Act, 1870, and of this Act and any other enactment for the time being in force, be treated as if their subject-matter were of such value as the ³[Supreme Court] thinks fit to specify in this behalf.