![](https://coimages.sciencemuseumgroup.org.uk/250/99/large_thumbnail_2016_0497__0001_.jpg)
horological rubber
1850-1900
1850-1900
1890-1910
1864-1900
circa 1861
1862
after 1903
1850-1859
1895
1849
1855
1870
circa 1900
1878
circa 1840
circa 1900
1903
1902
circa 1880
1900
1860
1846-1859
1842
1850
1901
circa 1885
1895
1896
1842
1837
1902
1831-1870
1910
1834
1834
1834
1898
1840-1850
1847
1870-1910
1842
circa 1905
1845
1837
1886
1832
1906
1830-1900
1890-1910
1860-1900
1854