circa 1953
1950
1950-1951
2000-100 BCE
1951
1948
1954
1953
1950-1952
1948-1953
1950-1953
1951-1953
circa 1950
1938 and 1951
1949
May 1953
1955; 1830
1990-96
1986 (replica); 1501-1600 (original)
1903 (original); 1982 (model)