Reissue of prior insurance
The Secretary, with the consent of the mortgagee and the mortgagor of a mortgage insured under this section prior to February 3, 1938 , shall be empowered to reissue such mortgage insurance in accordance with the provisions of this section as amended by the National Housing Act Amendments of 1938, and any such insurance not so reissued shall not be affected by the enactment of such Act.