Section 404. Official seals

The official seals of boards of supervisors of
  the several counties, county seal, county treasurer's seal and the  seal
  of  the  register  of  deeds  shall  continue  to be the official seals,
  respectively, of such boards, county treasurer, surrogate  and  register
  of  deeds  and  used as such, respectively, when authorized by law. When
  any such seal shall be lost, destroyed, or become  unfit  for  use,  the
  board of supervisors of the county interested therein or not having such
  seal,  shall  cause a new seal or seals to be made at the expense of the
  county.  A  description  of  each  of  such  seals,  together  with  the
  impressions  therefrom, shall be filed in the office of the county clerk
  and in the office of the secretary of  state.  In  counties  having  two
  county  seats, a duplicate of the county seal shall be procured and kept
  at the county seat where the county clerk's office is not  situated,  at
  some  place  to be designated by the county clerk and may be used by him
  the same as at his office. In counties having but one  court  house  and
  which  is located more than five miles from the county clerk's office, a
  duplicate of the county seal shall be procured and kept  at  such  court
  house  and  the  county  clerk may use the same at such court house. The
  seal kept by the county clerk in  each  county,  as  prescribed  in  the
  judiciary  law, shall continue to be the seal of the county, and must be
  used by him where he is required to use an official seal.