Concrete Wall Construction Crew
Thursday, June 25th, 2009 at 1:16:37 PM · Photo Archive/2009/jpl_unstuck_mars_rover
A group of men work together to construct a concrete wall using shovels and other tools at a factory in 2009. They wear protective clothing and accessories including hardhats, gloves, and sturdy footwear while balancing on plywood and operating a machine.
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