
Maudslay 's Lord Chancellor bench micrometer
1805
1805
1776
1900
circa 1900
1801-1811
circa 1981
1881
1920-1939
1826-1894
1944
1922-1928
1913-1929
1850-1900
1878-1867 (design)
1893
circa 1960
1801-1811
1920
1889
1930
1920-1939
1960
circa 1960
1884
1856
1901
1876
1875
circa 1882
earliest 1909
1876
1826-1894
circa 1910
1745