Folding Prismatic Compass, 1846-52

Made:
1846-1852 in City of Westminster
patentee:
Edward John Dent
and
Edward John Dent
and

Folding prismatic magnetic compass in brass case, made and patented by Edward John Dent, 82 Strand, 33 Cockspur Street, London, 1846-52. Fitted with engraved scale, filters, mirror and detachable from brass case, for use as dip circle (?).

Details

Category:
Surveying
Object Number:
1952-60
Materials:
brass (copper, zinc alloy), glass, iron
Measurements:
overall (closed): 45 mm x 90 mm x 115 mm, .57kg
type:
prismatic compass
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
  • magnetic compass
  • furnishing and equipment
  • measuring device - instrument
credit:
Poynter, L.
status:
Permanent collection

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