
Phillip's Economic Computer
1949
1949
1949
1830 (original); 1967 (model)
1839 (original); circa 1988 (replica)
1952-3
1947
1948
1948
1946
1948
1955; 1830
1949
1938 and 1951
1948
1949
1946
1946-1948
1946
2000-100 BCE
1946
1948
1947
1946
1949
1948
1990-96
1948
1949
1801-1892 (prepared); 1946 (element replaced)
1948
1947-1948
1946-1948
4000-2001 BCE
circa 1947
1948
1949
1947
1948
1947
1947
1903 (original); 1982 (model)
1948
1948
2050-1750 BCE
1990-95
1798 (original); 1977 (model)
1947
1879 (1956)
1949
1947