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
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
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
Five assorted microscope objectives, two by R. & J. Beck Ltd, one by Baker, four with cannisters. Five assorted microscope objectives 1900-1940