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KEYWORDS: Technology & Equipment

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Date Format Image Collection
January 30, 1901 Letter    Document
January 29, 1901 Letter    Document
circa 1900 Postcard  Sepia toned photo of man hunched over holding a cane. Visual Still
circa 1900 Chart  Terms used for deaf education which read- Akouphone: to enable the deaf to hear, Akou-Massage: for the treatment of catarrhal deafness, and the Akoulalion: for the instruction of deaf mutes. Visual Still
circa 1900 Photograph  A young man, with hat on his knee, sits in a wheelchair with metal wheels. Visual Still
October 12, 1899 Article    Document
October 12, 1899 Engraving  Desk for working on punch cards. Visual Still
October 12, 1899 Engraving  Man sitting at desk receiving sorted punch cards, Visual Still
October 12, 1899 Engraving  A mechanism for counting, a numbered dial on front. Visual Still
October 12, 1899 Engraving  Mechanism with punch on a lever. Visual Still
October 12, 1899 Engraving  Mechanism for punching cards on table. Visual Still
December 25, 1894 Patent    Document
December 25, 1894 Patent  Design drawing for S.A. Potter Invalid Chair, sheet 1. Visual Still
December 25, 1894 Patent  Design drawing for S.A. Potter Invalid Chair, sheet 2. Visual Still
June 19, 1894 Patent    Document
June 19, 1894 Patent  Design drawing for O.L. Smith-Fraser Invalid Chair Visual Still
June 19, 1894 Patent  Design drawing for O.L. Smith-Fraser Invalid Chair, sheet 2. Visual Still
1893 Photograph  Alexander Graham Bell speaks into a telephone. A group of men in suits look on. Visual Still
August 30, 1890 Article    Document
August 30, 1890 Cover  Cover of Scientific American magazine, showing men and women working on census data using Hollerith Tabulator and its punch cards. Visual Still
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