the brass plate used mounting point for theodolite top concrete british ordnance survey triangulation tri
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Stockphotos.ro (c) 2024. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
the brass plate used mounting point for theodolite top concrete british ordnance survey triangulation tri |
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| navigate by keyword : bench britain british coordinates elevation geodetic map mark measurement metal number ordnance pillar plate point reference survey surveying theodolite triangulation trig |
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| The brass plate used as a mounting point for a theodolite on top of a concrete British Ordnance Survey triangulation point, or Trig Point |
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Stockphotos.ro (c) 2024. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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