Five wooden molecular model balls
circa 1810
circa 1810
2000-100 BCE
1893-4
1863-7
1705-1737
1772 (original); 1919 (model)
1775-1799 (original); 1900-1907 (model)
circa 1810
1990-96
4000-2001 BCE
circa 1810
circa 1810
10000-5000 BCE
1910-130
1713-1750
1810
1810
1692-1730
1940-1050
1811
8500-2000 BCE
5000-500 BCE
2686-2613 BCE
2000 BCE
8500-2000 BCE
8500-2000 BCE
8500-2000 BCE
8500-2000 BCE
1889-02
1810
1811
8500-2000 BCE
1810
8500-2000 BCE
8500-2000 BCE
8500-2000 BCE
8500-2000 BCE
2000 BCE
1856-01
1885-09
1811
1811
1810
1810
1811
1810
1810
1810
1810
1810