![](https://coimages.sciencemuseumgroup.org.uk/451/529/large_thumbnail_a600314_0002__0002_.jpg)
Lenses from the Finsen lamp
1890-1900
1890-1900
1960
1870-1878
1979
1897
1977
1945-1955
1801-1822
1998
1967
1920-1930
1955-1960
1888
1971
1950-1970
1977
1955
1895
1913-1914
1900
circa 1890
1980-1982
1937
2020
1921
1922
2006
1850
1940
1927
1968
1914
1895-1900
1916
circa 1940
1930-1940