Topometer, combined box sextant & range-finder, British, 1905-1920
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Science Museum Group
© The Board of Trustees of the Science Museum
Owen's topometer, with case, made by James A. Sinclair and Co. Ltd., 54 Haymarket, London, 1905-1920
Details
- Category:
- Surveying
- Object Number:
- 1963-292
- Materials:
- brass (copper, zinc alloy), glass, leather, steel (metal), zinc (metal) and adhesive tape
- Measurements:
-
overall: 52 mm x 145 mm x 95 mm, .42kg
- type:
- box sextant and optical range-finder
- credit:
- Williams, R.E.
