Section 256. Photographic reproduction of records

Any  photograph,
  microphotograph or reproduction on film of  any  of  the  documents  and
  records of a savings bank relating to the accounts of its depositors and
  the  operation of its business, which such savings bank has caused to be
  made in the  conduct  of  its  business,  shall  be  deemed  to  be  the
  equivalent  of  the original thereof for all purposes, provided that the
  original of any such documents and records has been destroyed, that such
  photograph, microphotograph or reproduction on film shall be of  durable
  material,  and  that  the  device  used  to reproduce such documents and
  records shall be one which accurately reproduces the original thereof in
  all details.