Five wooden molecular model balls
circa 1810
circa 1810
1812
2000-100 BCE
1893-4
1863-7
1813
1775-1799 (original); 1900-1907 (model)
1990-96
1813
1705-1737
1811-1812
1772 (original); 1919 (model)
4000-2001 BCE
1814
circa 1810
circa 1810
circa 1810
1870-10
1836-02
1872-08
1814
1812
1856-01
1814
30
1857/07
1883-01
1810
1810
1810
1810
1810
1810
1812
1810
1811
1877 (copy); 1700-1731 (original)
1812
circa 1810
1810
1812
1811
1812
30 CE
1813
1813
30 CE
1811
2686-2613 BCE
1814