Bolt forming one concealed reference point at a fundamental bench mark

Bolt forming one concealed reference point at a fundamental Bolt forming one concealed reference point at a fundamental

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License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

License this image for commercial use at Science and Society Picture Library

License

Bolt forming one concealed reference point at a fundamental
Science Museum Group
© The Board of Trustees of the Science Museum

Bolt forming one concealed reference point at a fundamental
Science Museum Group
© The Board of Trustees of the Science Museum

Bolt forming one concealed reference point at a fundamental bench mark, 1914

Details

Category:
Surveying
Object Number:
1914-151
Materials:
bronze
Measurements:
excluding screw: length 142 mm
cap: diameter 68 mm
type:
bench mark
credit:
Ordnance Survey