horological rubber
1850-1900
1850-1900
1821-1850
1914-1918
1890-1910
1771-1830
1771-1830
1771-1830
1771-1830
1864-1900
circa 1861
1928
1862
after 1903
1918-1922
1850-1859
1915
1895
1849
1855
circa 1930
1794
1918
1870
1914-1920
circa 1900
1878
circa 1840
1920-1929
1912
circa 1900
1903
1902
1801-1900
1771-1800
1913-1923
1827-1850
1790-1840
1850-1900
circa 1880
1900
1920
1930
1875
1884
1860
1917
1924
1846-1859
1842
1850