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Microscope objective with cross hairs set in extension tube and 360 degree scale

1890-1910

Microscope objective

1975-1985

Microscope objective

1865-1875

Three phase contrast microscope objectives

1950-1960

Special objective, 20th century

1901-1970

Microscope objective, by Cooke, English, 1950-1965

1950-1965
16mm apochromatic microscope objective, resolving 34,500 lines per inch, with brass case, made by C. Zeiss, Jena, German, 1894, agent C. Baker, London

16mm apochromatic microscope objective

1894
24mm apochromatic microscope objective resolving 33,000 lines per inch, with brass case, made by C. Zeiss, Jena, German, 1890, agent Charles Baker, London

24mm apochromatic microscope objective resolving 33

1890
Three apochromatic and one semi-apochromatic microscope objectives, with brass cases, and four compensating eyepieces, by Carl Zeiss, Jena, German, 1880-1901

Three apochromatic and one semi-apochromatic microscope objectives

1880-1901
Five assorted microscope objectives, two by R. & J. Beck Ltd, one by Baker, four with cannisters.

Five assorted microscope objectives

1900-1940
36mm semi-apochromatic microscope objective, resolving 16000 lines per inch, with brass case, made by C.Zeiss, Jena, German, 1901

36mm semi-apochromatic microscope objective

1901
4mm apochromatic microscope objective, with correction collar, just resolving 90,000 lines per inch, with brass case, made by C. Zeiss, Jena, German, 1890

4mm apochromatic microscope objective

1890
Set of 4 plano objectives and 2 pairs of periplan eyepieces by Leitz, Wetzlar, German, 1945-1960

Set of 4 plano objectives and 2 pairs of periplan eyepieces by Leitz

1945-1960