1977
2000-100 BCE
1975
1976
1974-1976
circa 1975
(1962); 1982
1974-1977
1990-96
1974
1986 (replica); 1501-1600 (original)
1903 (original); 1982 (model)
4000-2001 BCE
circa 1976
1970 and post 1989
15/7/27
2000-500
2686-2613 BCE