| Country | State | Classification | Source | WallNo | Centennial | Commercial | Location | surroundPic |
| United States | Pennsylvania | Limestone | Lebanon | 7La15 | 37860 | n | Front Face (South) | Dscf0132.jpg |
Description |
| dark blue gray |
| fine grain |
| compact |
| Lower Silurian |
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No 7LA15 is:
| Picture of the Archive Stone: |
Actual Picture from the Stone Wall:
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