
Meteorological Office aneroid barometer Mark I
1940
1940
1940
1914
1950
1870-1890
1848
1884
1923
1850
1914
1831-1870
1895-1905
1876
1945-1954
1850
1997
1997
1871-1906
1915-1925
1900-1920
1871-1900
1912
1963
1986
1875
1895-1905
1964
1885-1993
1925-1983
1943-1983
1875
circa 1900
circa 1910
circa 1880
1875
1900-1924
1913-1916
1984
1871-1900
1850-1900
1944
circa 1910