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AdirPro Survey Markers – Durable Solid Brass & Low Profile Permanent Boundary Marking Caps/Stakes – for Surveying & Measuring Property & Land Area (2 Inch, Domed) - Pack of 6 : Patio, Lawn & Garden - Amazon.com
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Brass metal disc US Army Corps of Engineers survey marker, Wildcat Mountain State Park, Ontario, Wisconsin, USA Stock Photo - Alamy
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