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telescope eyepiece
telescope eyepiece

telescope eyepiece

Date1875-1900
Inventory Number2007-1-0182
ClassificationEyepiece
Subject
    Maker Alvan Clark and Sons 1846 - 1958
    Cultural Region
      Place of Origin
        Dimensions3.5 x 3.5 x 3.6 cm (1 3/8 x 1 3/8 x 1 7/16 in.)
        Material
          DescriptionThis is a telescope eyepiece with outer diameter 2.9 cm (1 1/8 inches). The flange is knurled. The central ring of threads is raised. The barrel behind the flange is encircled by a pair of lines.

          This eyepiece is marked 170.
          Signedunsigned
          Inscribedon flange: 170
          telescope eyepiece
          telescope eyepiece
          Alvan Clark and Sons
          Date: 1875-1900
          Object number: 2007-1-0181
          telescope eyepiece
          telescope eyepiece
          Alvan Clark and Sons
          Date: 1875-1900
          Object number: 2007-1-0183
          telescope eyepiece
          telescope eyepiece
          Alvan Clark and Sons
          Date: 1875-1900
          Object number: 2007-1-0184
          telescope eyepiece
          telescope eyepiece
          Alvan Clark and Sons
          Date: 1875-1900
          Object number: 2007-1-0286
          1.75-inch refracting telescope
          1.75-inch refracting telescope
          Alvan Clark and Sons
          Date: 1880-1910
          Object number: 1997-1-0032
          6-inch refracting telescope
          6-inch refracting telescope
          Alvan Clark and Sons
          Date: 1910
          Accessories: shipping crate, terrestrial eyepiece, dust cap, mount and tripod (2003-1-0077b)
          Object number: 2003-1-0077a
          comet eyepiece
          comet eyepiece
          Alvan Clark and Sons
          Date: circa 1875
          Object number: 2007-1-0071
          comet eyepiece
          comet eyepiece
          Alvan Clark and Sons
          Date: circa 1875
          Object number: 1996-1-0512
          comet eyepiece
          comet eyepiece
          Alvan Clark and Sons
          Date: circa 1875
          Object number: 1996-1-0517
          comet eyepiece
          comet eyepiece
          Alvan Clark and Sons
          Date: circa 1875
          Object number: 1996-1-0527
          1.5-inch refracting telescope
          1.5-inch refracting telescope
          Alvan Clark and Sons
          Date: 1880-1910
          Object number: 1997-1-0033
          2.5-inch objective lens in oblique tube
          2.5-inch objective lens in oblique tube
          Alvan Clark and Sons
          Date: circa 1875
          Object number: 1996-1-0511