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