Five wooden molecular model balls
circa 1810
circa 1810
2000-100 BCE
1893-4
1863-7
1990-96
1705-1737
1772 (original); 1919 (model)
1775-1799 (original); 1900-1907 (model)
circa 1810
4000-2001 BCE
1810
1810
1811
circa 1810
1810
1811
30 CE
30 CE
1811
2686-2613 BCE
1811
1888-185
1945-50
1370-1350 BCE; 1931
1931; 250 BCE
1370-1350 BCE; 1931
2000-1000
100 BCE-300 CE; 1890-1920
1972-3
2500 BCE
1880-120
1851-1800
1990-95
circa 3000 BCE
2000 BCE
1810
circa 1830
1811
1810
1810
15/7/27
15/7/27
circa 3000 BCE
3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE
circa 3000 BCE