Anemometer, used by Dr.M.H.Gordon
circa 1900
circa 1900
1884
circa 1880
circa 1900
circa 1880
circa 1880
1940-1960
1881
1800-1812
1920-1950
1890-1930
1997
1861-1865
1872
1997
1992
1950
1900-1930
1870-1900
1997
circa 1880
1900-1904
circa 1880
circa 1880
1843
1952-55
1965-1966
1878-1883
1882
1996
1846
1986
1932