
Five wooden molecular model balls
circa 1810
circa 1810
1840s-1900
c1860
2000-2004
2021
circa 1947
1974
1860
1890-1900
circa 1855
1960-1965
1960-1965
circa 1855
1860
1890-1930
1900-1950
1900-1950
1880-1930
1900-1950
1900-1950
1880-1930
1900-1950
1890-1940
1900-1950
1900-1950
1880-1930
1900-1950
1987-2003
1839
1967
circa 1830
1903
circa 1848-circa 1868
circa 1840
circa 1860
1845-1855
circa 1855
circa 1843
1860-1870
1900-1910
1835-1845
1890
1905-1915
1755-1765