25 U.S.C. § 6 : US Code - Section 6: Seal; authenticated and certified documents; evidence

Search 25 U.S.C. § 6 : US Code - Section 6: Seal; authenticated and certified documents; evidence

The Commissioner of Indian Affairs shall cause a seal to be made
and provided for the said office, with such device as the President
of the United States shall approve, and copies of any public
documents, records, books, maps, or papers belonging to or on the
files of said office, authenticated by the seal and certified by
the Commissioner thereof, or by such officer as may, for the time
being, be acting as or for such Commissioner, shall be evidence
equally with the originals thereof.