National Mining Hall of Fame. Employee name board on display at the National Mining Hall of Fame and Museum, Leadville, Colorado, USA. This board was used to keep track of 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. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / West, Jim |
Taille de l’image : | 5370 px × 3580 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |