
Five wooden molecular model balls
circa 1810
circa 1810
1812
1893-4
1863-7
1812
1812
2000-100 BCE
1772 (original); 1919 (model)
circa 1810
1990-96
1775-1799 (original); 1900-1907 (model)
1705-1737
1812
4000-2001 BCE
1811-1812
1807 - 1904
circa 1810
circa 1810
1889-02
1850-1899
1774; 1923
1642-1649 (original); 1883 (model)
2000-100 BCE
1883-01
30
1-79 CE; before 1914
1991-1783 BCE
5000-500 BCE
1894-05
1867-04
1864-05
1864-04
1864-10
1870-10
1867-04
1865-05
1810
1810
2000 BCE
1991-1786 BCE
1850-07
1899/12
1899/12
1857/07
1861-08
1856-11
1811
1811
1811
1810