| Country | State | Classification | Source | WallNo | Centennial | Commercial | Location | surroundPic |
| United States | Michigan | Argillite (Slate) | Arvon | 6La45 | 27342 | y | Front Face (South) | Dscf0118_2.jpg |
Description |
| blue-black |
| smooth texture slate |
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No 6LA45 is:
| Picture of the Archive Stone: |
Actual Picture from the Stone Wall:
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