Land Surveyors United • June 14, 2026, 5:00 pm
Surveying Party, Equipment, and Snow (1903) ~ Louisiana Purchase Exposition grounds
Land Surveyors United • June 14, 2026, 5:00 pm
IB with triangular target marks on a DKM-1 Centering Tripod - late 1950'/early 1960's Dam construction.
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