§ 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.