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