1975
1973
1972
circa 1972
1974-1976
1976
2000-100 BCE
(1962); 1982
circa 1975
1990-96
1986 (replica); 1501-1600 (original)
1973-1974
1903 (original); 1982 (model)
1974
4000-2001 BCE
circa 1973
circa 1976
1970 and post 1989
2686-2613 BCE