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