aperture cards

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  4. Visual and Verbal Communication (hierarchy name)
  5. Information Forms (hierarchy name)
  6. information forms (objects)
  7. information artifacts
  8. [information artifacts by physical form]
  9. microforms
  10. microfiche
  11. aperture cards
Scope note
Cards with one or more openings into each of which is mounted a frame cut from a strip of microfilm.
aperture cards
Accepted term: 06-May-2024