1973
2000-100 BCE
1975
1976
(1962); 1982
1974-1977
circa 1975
1977
1974-1976
1990-96
1986 (replica); 1501-1600 (original)
1973-1974
1974
1903 (original); 1982 (model)
4000-2001 BCE
circa 1973
circa 1976
1970 and post 1989