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Artifact Images
- One Of The Counters from The Hollerith Method Of Statistical Tabulation
- Key-Board For Designating Individual Records from The Hollerith Method Of Statistical Tabulation
- Gang-Punch For Punching The Enumerator's Combination from The Hollerith Method Of Statistical Tabulation
- Alexander Melville Bell Visible Speech
- Alexander Melville Bell Visible Speech
- Chart For Alexander Melville Bell's Visible Speech
- Deaf Education Terminology
- Man In A Wheelchair With Steel Wheels
- World's Fair Exhibition Of Hutchinson Acoustic Company
- Man In Crank Wheelchair