notes.husk.org/likes
images.
tagged security classification.
2 images.
2 images
aperture card
microfilm
microform
bell system
3m filmsort
technical drawing
film strip
security classification
vintage document
archival record
thomas martin nutt
top secret
redacted
nsa
national security agency
government document
classified information
intelligence agency
declassified
office of general counsel
security classification
Notational
