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LicenseSimple device for plotting topography from photographs
Science Museum Group
© The Board of Trustees of the Science Museum
Simple device for plotting topography from photographs, designed by Douglas H. Nelles, 1910-20.
Details
- Category:
- Surveying
- Object Number:
- 1925-59
- Materials:
- brass (copper, zinc alloy), steel (metal) and plastic (unidentified)
- Measurements:
-
overall: 33 mm x 400 mm x 398 mm, .61kg
- type:
- stereo-comparator
- credit:
- Geodetic Survey of Canada
