| Country | State | Classification | Source | WallNo | Centennial | Commercial | Location | surroundPic |
| United States | Iowa | Limestone | Marshalltown | 12RA21 | 63729/1 n | n | Front Face (South) | Dscf0435.jpg |
Description |
| light drab |
| fine grain |
| compact |
| arenaceous |
| calcite |
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No 12RA21 is:
| Picture of the Archive Stone: |
Actual Picture from the Stone Wall:
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