| Gauges used by the hoist operator to indicate the depth of the cage & determine the appropriate level to stop it on. |
| Date:
6/21/2008 |
Location:
Mahanoy City, PA |
Views:
934 |
Collection Of:
 
Mike Thomas |
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Author: Mike Thomas
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| Picture Categories: |
This picture is part of album: Abandoned Anthracite Mines |