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Also note not a hard-hat in sight. This is on the eve of modern attitudes towards workplace safety, which got a big boost from reporting on worker deaths associ

Also note not a hard-hat in sight. This is on the eve of modern attitudes towards workplace safety, which got a big boost from reporting on worker deaths associated with the Hoover Dam project.

kevin_thibedeau 7y ago
There are hard hats on display in this exhibition if you go to the museum.