Type 31 Alphabetical Duplicating Punch

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  • Details
  • Description
Date Introduced
1933
Photographer
Richards, Mark
Dimensions
40 x 38 1/4 x 27 1/4 in.
Manufacturer
International Business Machines Corporation (IBM)
Copyright Owner
© Mark Richards
Location
United States
Keywords
Hollerith, Herman; Business; Unit record equipment
Object ID
102631023

Punched card accounting machines increased the efficiency of office operations but the data first needed to be punched onto the cards. This keyboard-operated card punch could record letters as well as digits with a single keystroke, and was much faster than the single-lever pantograph punch originally used by Hollerith.