We cannot know till we catalog and people search and
find only the fiche copy
Its most important that cataloging is done at an early stage and done
well enough
that it is findable, an ocr'd scan/photo or manually typed index of
any docs that have
faults in the part numbers will be hidden from all but the people who
correctly mistype the part number
I would think that everything available on fiche was originally, and
more commonly, available on paper.
How well the paper survived is a matter of discussion.
--
Will