Phillip's Economic Computer
1949
1949
1949
1951
1839 (original); circa 1988 (replica)
1951
1949
1951
1950
1951
1950
1938 and 1951
1949
4000-2001 BCE
2000-100 BCE
1951
1951
1950
1950
1949
circa 1950
1949
1952-3
1950-1951
1950-1951
1950-1951
1990-95
1950
1903 (original); 1982 (model)
1951
1949
1955; 1830
1951
1951
1949
1951
1951
1950
circa 1950
1950
1950
1949
circa 1950s
1949
6000-5000BCE
1950
1960-1979
1950
1879 (1956)
1935; 1958
2050-1750 BCE