
Ramsbottom speed indicator
1860
1860
1895
1850-1870
1898-1908
1845
About 1890
1887-1903
1856
1875-1890
1861
1861
1896
1906
1872-1880
1934
1850-1897
1902-1907
1830
1896
1879
1840
1870-1890
1857-1870
1831-1870
1835
after 1903
1886
1837
1882
1904
1908
1840
1888
1826
circa 1868
circa 1905
1890
1845
1833-1866
1830-1850
1850
1890
1899
1905
1896
1845
1830-1840
1848
1858
1875