Section 122
SEC. 122. Any acquisition, conveyance, alienation, transfer, or other contract made or executed in violation of any of the provisions of sections one hundred and sixteen, one hundred and eighteen, one hundred and nineteen, one hundred and twenty, and one hundred and twenty-one of this Act shall be unlawful and null and void from its execution and shall produce the effect of annulling and canceling the grant, title, patent, or permit originally, issued, recognized, or confirmed, actually or presumptively, and cause the reversion of the property and its improvements to the Government.