| Country | State | Classification | Source | WallNo | Centennial | Commercial | Location | surroundPic |
| United States | Ohio | Sandstone | Marietta | 6RB21 | 25471 | y | Front Face (South) | Dscf0110.jpg |
Description |
| buff |
| coarse grain |
| porous |
| carboniferous |
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No 6RB21 is:
| Picture of the Archive Stone: |
Actual Picture from the Stone Wall:
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