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adjustable slit with micrometer
adjustable slit with micrometer

adjustable slit with micrometer

Date1896-1923
Inventory Number2007-1-0384
ClassificationSlit
Subject
    Maker Wm Gaertner & Company 1896 - 1923
    Cultural Region
      Place of Origin
        Dimensions11.6 × 5.9 × 7.3 cm (4 9/16 × 2 5/16 × 2 7/8 in.)
        Material
          DescriptionAn adjustable slit is operated by a small micrometer screw with a calibrated scale. The slit is mounted on the end of a draw tube that would have been inserted into a collimating telescope. A bracket with a spring is also attached to the tube.
          Signedon slit face: WM GAERTNER & CO / CHICAGO
          adjustable slit with micrometer
          adjustable slit with micrometer
          American
          Date: 1875-1900
          Object number: 2007-1-0382
          adjustable slit with micrometer
          adjustable slit with micrometer
          American
          Date: 1875-1900
          Object number: 2007-1-0381
          adjustable slit with prism and micrometer
          adjustable slit with prism and micrometer
          American
          Date: circa 1900
          Object number: 2007-1-0383
          rotating adjustable slit
          rotating adjustable slit
          American
          Date: 1850-1900
          Object number: 2007-1-0530
          filar micrometer
          filar micrometer
          Wm Gaertner & Company
          Date: 1900-1920
          Accessories: micrometer eyepiece, eyepiece adaptor
          Object number: 1997-1-1836
          rotating adjustable slit
          rotating adjustable slit
          American
          Date: 1875-1900
          Object number: 2007-1-0532
          Gaertner comparator compound microscope
          Gaertner comparator compound microscope
          Wm Gaertner & Company
          Date: circa 1930
          Accessories: objective; ocular
          Object number: 1166
          adjustable slit
          adjustable slit
          Louis Jules Duboscq
          Date: 1850-1870
          Object number: 2007-1-0467
          spectrometer
          spectrometer
          Wm Gaertner & Company
          Date: circa 1925
          Object number: WJ0103
          set of three adjustable slits on tailpiece
          set of three adjustable slits on tailpiece
          French
          Date: 1850-1900
          Object number: 2007-1-0533
          adjustable slit with prism for reference source
          adjustable slit with prism for reference source
          American
          Date: 1875-1900
          Object number: 2002-1-0032
          adjustable slit
          adjustable slit
          American
          Date: 1875-1900
          Object number: 2007-1-0387