Brass framed quintant.

Made:
1850-1860 in Strand
maker:
William Cary

Quintant with 3-inch radius limb, anodized brass frame and silver inlaid scale marked -5° to 165° (144° range), 20 arc-min. divisions' with silver vernier scales to 30 arc-sec. and hinged wooden handle, without box, by (William) Cary, London, 1850-1860. Fitted with tangent and clamping screws at back of the index arm; two shades (both green); two horizon shades (both green); index-glass and horizon glass with screw adjustment; Magnifier (single lens) on 45 mm swivelling arm and Threaded telescope bracket with two telescopes, (70 mm) erect image, (105 mm) inverted image and sight tube (69 mm).

Details

Category:
Surveying
Object Number:
1876-991
Materials:
brass (copper, zinc alloy), ebony, mahogany (wood), steel (metal)
type:
quintant
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
  • sextant
credit:
Admiralty Hydrographic Department
status:
Permanent collection

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