45The repeals effected by the Act of 1962 shall not affect the validity of any order authorising the compulsory acquisition of any land—
(a)under section 37(2) of the Act of 1947 (which enabled the Minister of Works or the Postmaster-General, during the period before a development plan had become operative with respect to any area, to be authorised in certain circumstances to acquire land compulsorily);
(b)under section 38(2) of that Act (which enabled certain local authorities, during any such period, to be authorised in certain circumstances to acquire land compulsorily); or
(c)under subsection (3) of section 38 of that Act in a case where the power conferred by that subsection was exercisable in lieu of the exercise of the power conferred by subsection (2) thereof,
or of any notice served or other thing done in pursuance of any such order.