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1956: Drilling Demonstration

For the 1956 State Fair, the Survey drilled a core. Visitors could watch the drilling and look at the core.

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SF Exhibit: Drilling a core
SF Exhibit: Drilling a core  
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SF Exhibit: Drilling a core
SF Exhibit: Drilling a core  
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SF Exhibit: Drilling a core
SF Exhibit: Drilling a core  
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SF Exhibit: Drilling a core
SF Exhibit: Drilling a core