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interferometer telescope and scale.

Date1896-1923
Inventory Number0177
ClassificationInterferometer
Subject
    Maker Wm Gaertner & Company 1896 - 1923
    Cultural Region
      Place of Origin
        Dimensions36.8 × 26.7 × 28.5 cm (14 1/2 × 10 1/2 × 11 1/4 in.)
        Material
          DescriptionTelescope (0177b) with cross hairs supported in gimbals on an adjustable rod and tripod base (0177a). Separate vertical moveable rod for scale. Straight wooden scale with paper scale attached (0-50) (0177c).
          Signedon telescope: WM. GAERTNER & CO / CHICAGO on scale: WM. GAERTNER & CO., CHICAGO
          filar micrometer
          Wm Gaertner & Company
          Date: 1900-1920
          Accessories: micrometer eyepiece, eyepiece adaptor
          Object number: 1997-1-1836
          saddle to hold telescope for reflecting galvanometer scale
          Wm Gaertner & Company
          Date: 1896-1923
          Object number: 2007-1-0208
          saddle to hold telescope for reflecting galvanometer scale
          Wm Gaertner & Company
          Date: 1896-1923
          Object number: 2007-1-0210
          adjustable slit with micrometer
          Wm Gaertner & Company
          Date: 1896-1923
          Object number: 2007-1-0384
          saddle to hold telescope for reflecting galvanometer scale
          Wm Gaertner & Company
          Date: 1896-1923
          Object number: 2007-1-0207
          saddle to hold telescope for reflecting galvanometer scale
          Wm Gaertner & Company
          Date: 1896-1923
          Object number: 2007-1-0209
          spectrometer
          Wm Gaertner & Company
          Date: circa 1925
          Object number: WJ0103
          galvanometer scale on tripod stand with telescope
          Fritz Köhler
          Date: circa 1900
          Object number: 0175
          saddle to hold reading telescope
          Wm Gaertner & Company
          Date: 1896-1923
          Object number: 2007-1-0297
          string galvanometer
          Wm Gaertner & Company
          Date: 1896-1923
          Object number: 0489
          tuning fork, C
          Wm Gaertner & Company
          Date: 1896-1923
          Object number: 1997-1-1068
          steel tuning fork with bent tines
          Wm Gaertner & Company
          Date: circa 1850
          Object number: 1998-1-0678