July 2015
Intermediate to advanced
12 pages
34m
English
Content preview from Rare Books in the National Cryptologic Museum
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cryptolog'y.
The
publications date
from the
l6th to the
early zoth
century
and represent
authors
from all
over Europe.
Following
is some
additional
background
information
about
some of
the volumes
and their authors.
The NSA
Rare Book
Collection
has existed
in one location
or
another since
at least
the lggos.
The
first volumes
were
probably
acquired by
William
E Friedman
and his
associates
during
the early
days of
the Army's
Signal Intelligence
Service.
The
collection
grew during
World
War II, when it
was
possible
to obtain
almost
anything
if it was
"for
the war
effort."
It
is likely that
these volumes
were
purchased
not for their
physical value,
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