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universal equatorial sundial
universal equatorial sundial

universal equatorial sundial

Datemid 18th Century
Inventory Number7122
ClassificationSundial
Subject
    Maker Jacob Moler fl.1750
    Cultural Region
      Place of Origin
        Dimensions18.3 × 18.9 × 18.3 cm (7 3/16 × 7 7/16 × 7 3/16 in.)
        Material
          AccessoriesNone.
          DescriptionEquinoctial dial with a continuous circular chapter ring marked I-XII, I-XII, subdivided in 1/4 hour increments. The vertical angle of the chapter ring is adjustable for northern latitudes from 35° to 60°, calibrated in 1° increments. A peep sight is provided with a means to adjust for declination of the sun with a calendar scale divided into months and subdivided into two day increments. A zodiac scale is provided on the reverse side.

          self-aligning universal equatorial sundial
          SignedSigned "Jacobus Molerus" engraved on base plate.
          Curatorial RemarksAppraisal by Brieux, 9/24/84: $200.
          FunctionTime-finding by orienting the chapter ring to be parallel to the equinoctial with an angular adjustment for latitiude and with the peep sight adjusted for the sun's declination. The sight is rotated until the sun passes thru the peep hole and is centered on thedot. This would be more easily accomplished with the aid of a compass (possibly missing).
          ProvenanceJoseph Drecker, Aachen, Germany, before 1928 (no. 104); Frederik Casparus Wieder, Noordwijk, The Netherlands,1928; D. P. Wheatland, Topsfield, MA, 1959; gift to CHSI, ca. 1987.
          universal equatorial sundial
          universal equatorial sundial
          Thér Barrelet
          Date: date 1793
          Accessories: None. Plumb bob is missing.
          Object number: 7114
          universal equatorial sundial
          universal equatorial sundial
          Dominicus Lusuerg
          Date: date 1718
          Accessories: None.
          Object number: 7066
          universal equatorial sundial
          universal equatorial sundial
          French
          Date: 1850
          Accessories: None.
          Object number: 7589
          universal equatorial sundial
          universal equatorial sundial
          Jacobus Lusberg
          Date: date 1688
          Accessories: Oval green sharkskin fitted case and seperate plummet.
          Object number: 7068
          3-ring universal ring sundial
          3-ring universal ring sundial
          Giovanni Wendelino Hessler
          Date: 1689
          Object number: 7167
          3-ring universal ring sundial
          3-ring universal ring sundial
          German
          Date: 1750
          Accessories: None.
          Object number: 7170
          universal ring sundial
          universal ring sundial
          Honeman
          Date: circa 1700
          Accessories: case (missing)
          Object number: 7161
          4-ring universal ring sundial
          4-ring universal ring sundial
          Date: 1800
          Accessories: None
          Object number: 7165
          universal equatorial sundial
          universal equatorial sundial
          G. Winckler
          Date: 1790
          Accessories: Leather covered rectangular case and 4 leveling screws. Paper with calculations in pencil and printed "KUNSTAUKTIONSHAUS Math. Lempertz ...Koln " loose in case.
          Object number: 7106
          mechanical equatorial sundial
          mechanical equatorial sundial
          Al. Zimmerman
          Date: circa 1840
          Accessories: Original wood and brown leather case.
          Object number: 7487
          universal ring sundial
          universal ring sundial
          Italian
          Date: 1700
          Accessories: None
          Object number: 7153
          universal ring sundial
          universal ring sundial
          Edmund Culpeper
          Date: circa 1730
          Accessories: Rectangular black leather covered case with dark blue velvet lining.
          Object number: 7464