Beyer Pocket Cryptologic Device
A Beyer pocket cryptologic device from the 1930s, which in size and appearance resembles a pocket watch of the ...
Harry Letaw’s Collection
Former Essex Corporation Chairman and CEO Harry Letaw donated three unique items to the NCMF, ...
1796 letter from William Coleman with a shorthand code
EA-3B Skywarrior Photos
Two large, unique mounted photos of the EA-3B Skywarrior were donated in 2014 by Foundation supporter Dennis ...
The Link – an early NCMF newsletter
Agnes Meyer Driscoll
Agnes Meyer Driscoll held degrees in mathematics and physics, as well as proficiencies in ...





