Angle iron to support levelling staff at bench mark
- Made:
- 1914
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Science Museum Group
© The Board of Trustees of the Science Museum
Angle iron to support levelling staff at bench mark, 1914
Details
- Category:
- Surveying
- Object Number:
- 1914-424
- type:
- bracket - structural element and bench mark
- credit:
- Ordnance Survey
