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