Hollerith 45 column horizontal electrical sorting machine, 1920-1930
1920-1930
1920-1930
1909-1932
1944
1926
1956
1924
1901-1970
1980
1958-1965
1957
2023
2023
2022
1960
circa 1940
1960-1970
1950
2006-08-23
1954
1951
1950-1951
1940-1950