§ 532. Retention and destruction of certain recorded instruments.
After twenty years have elapsed from the date of recording a deed,
lease, contract, agreement, mortgage or a release of part of mortgaged
premises any such instrument so recorded which has not been returned to
the person presenting such instrument for recording or to some other
person authorized to receive the same, may be destroyed by the county
clerk without the permission of the commissioner of education provided
any such instrument is photographed, microphotographed or reproduced on
film preserved for examination and use.