This image shows unit wiring boards for tabulating machines, used in the 1940 U.S. Census. The boards are part of the U.S. National Archives collection, highlighting the technology used during the census period.
GLIX-115-D4YJD2
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This image shows unit wiring boards for tabulating machines, used in the 1940 U.S. Census. The boards are part of the U.S. National Archives collection, highlighting the technology used during the census period.
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