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Sheets, Wiring Diagrams for the IBM 405 Plug Board, Filled Out

Sheets, Wiring Diagrams for the IBM 405 Plug Board, Filled Out

Usage conditions apply
These two wiring diagrams for the IBM 405 plug board are filled out in pencil.
Currently not on view
Object Name
sheets, set of
Physical Description
paper (overall material)
overall: 41 cm x 27.8 cm; 16 5/32 in x 10 15/16 in
ID Number
nonaccession number
catalog number
Credit Line
Gift of Milton Schwartzbart
See more items in
Medicine and Science: Mathematics
Tabulating Equipment
Data Source
National Museum of American History
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