Kima model compound monocular microscope by W. Watson and Sons Ltd.
1930
1930
1925-1940
1955-1962
1940-1945
1915-1925
1930-1940
1965
1958-1962
1937
1965-1970
1952
1945-1947
1949-52
1901-1950
1925-1935
1955-1970
1957
1919-1940
1935-1945
1950-1960
1950-1960
1925-1945
1903-1913
1915
1915
1937
1908-1969
1960-1975
1950
1952
1952
1920-1924
1937
1955-1959
1917
1955-1960
1955-1959
1908-1928
1948
1925-1940