
Phillip's Economic Computer
1949
1949
1948-1950
1950
1945
1946
1946-1950
1839 (original); circa 1988 (replica)
1948
1949
1948
1946
1948
1950
1950
1945
1947
circa 1950
1945
1947
1948
1950
1955; 1830
1949
1949
1946
1946-1948
1938 and 1951
1946
2000-100 BCE
circa 1950
1948
1946
1948
1945-1948
1948
1990-96
circa 1950
circa 1950
1950
1950
1949
1952-3
1948
1950
1949
1801-1892 (prepared); 1946 (element replaced)
1948
1950
1950
1945-1946