horological rubber
1850-1900
1850-1900
1770-1800
1821-1850
1857-1870
1835
1771-1830
1771-1830
1771-1830
1771-1830
1861-1866
1864-1900
circa 1861
1776-1780
1776-1780
1776-1780
1862
1850-1859
1895
1849
1855
1794
1870
circa 1900
1878
circa 1840
circa 1900
1801-1900
1771-1800
1827-1850
1790-1840
1850-1900
circa 1880
1900
1875
1884
1860
1846-1859
1842
1850
circa 1885
1895
1896
1842
1790-1819
1790-1819
1790-1819
1790-1819
1790-1819
1827
1837