Census Tabulator, 1917 #1
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Census Tabulator, 1890 #3
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Census Tabulator, 1917
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Census Tabulator, C1908 #3
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Census Tabulator, C1908 #4
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Census Tabulator, 1890 #4
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Census Tabulator, 1890
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Census Tabulator, 1890 #1
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Census Tabulator, 1890 #2
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Census Tabulator, C1908
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Census Tabulator, 1919
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Census Tabulator, 1917 #2
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Census Tabulator, 1919 #1
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Census Tabulator, C1908 #1
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Census Tabulator, C1908 #2
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Hollerith Tabulator, 1890
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Census Machine, 1890 #1
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Unemployment Census, 1937 #3
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Census Machine, 1890
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Herman Hollerith, 1860-1929 #4
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Agriculture Census, C1916
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Herman Hollerith (1860-1929)
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Census Machine, 1890 #2
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Census Machine, 1890 #3
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Census Machine, 1890 #4
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Unemployment Census, 1937
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Census Counting Machine
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