FILE 17394 of 45937

National Mining Hall of Fame and Museum

Leadville, Colorado - The National Mining Hall of Fame and Museum. A board bearing employees' names was used to track who was in the mine. Tags would be removed from the board when an employee entered the mine and returned to the board when the employee exited.

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Filename:	mn-0226-d.jpg
Image Description:	Leadville, Colorado - The National Mining Hall of Fame and Museum. A board bearing employees' names was used to track who was in the mine. Tags would be removed from the board when an employee entered the mine and returned to the board when the employee exited.
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