| The SAS (southward absolute signal) at N. Walpole Interlocking. Seen parallel to NH-12. |
| Date:
8/18/2011 |
Location:
Charlestown, NH |
Views:
104 |
Collection Of:
 
Bob Beaumont |
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Author: Bob Beaumont
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| Picture Categories: Signal,Track |
This picture is part of album: NECRE PALMER SUB |