Meteorological Office aneroid barometer Mark I
1940
1940
1900-1920
1986
1923
1945-1954
1876
1875
1895-1905
1848
1940
1850
1963
1914
1950
1895-1905
1871-1906
1915-1925
1871-1900
1912
1850
1831-1870
1997
1997
1884
1870-1890
1914
1885-1993
1986
1875
1984
1875
1850-1900
1913-1916
1984
1945-1954
1964
1984
1913-1916
circa 1910
1885-1993
1943-1983
circa 1910
1925-1983
1964
1875