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Stone description: drab
| Wall Number Sort ascending | Country | State | Classification | Source |
|---|---|---|---|---|
| 9RB9 | United States | Iowa | Limestone | Mt. Pleasant |
| 9RB19 | United States | Pennsylvania | Sandstone | Erie |
| 9RB10 | United States | Iowa | Limestone | Davenport |
| 9RA21 | United States | Ohio | Sandstone | Monclava |
| 9LB9 | United States | Iowa | Limestone | Earlham |
| 8RB13 | United States | Texas | Limestone | Burnet |
| 8RB1 | Portugal | Marble | Freduesias of S Miguel Coimbra | |
| 8LA8 | Austria | Marble | Castione | |
| 8LA14 | United States | Indiana | Limestone | Kokomo |
| 7La9 | United States | Connecticut | Limestone | Shelterville |
| 6RA42 | United States | New Jersey | Sandstone | Martinville |
| 6RA28 | United States | New York | Sandstone | Belfast |
| 6LB47 | United States | Louisiana | Quartzite | Unknown |
| 14RB44 | United States | Kentucky | Limestone | Greensburg |
| 14RB43 | United States | Kentucky | Limestone | Lebanon |
| 14RA41 | Portugal | Marble | Freduesias of S Miguel Coimbra | |
| 14RA1 | United States | Indiana | Dolomite | Anderson |
| 14LB47 | United States | Kentucky | Limestone | Pineville |
| 14LB44 | United States | Kentucky | Limestone | Frankford Franklin Co. |
| 14LA20 | United States | Iowa | Limestone | Mt. Pleasant |
| 14LA17 | United States | Iowa | Dolomite | Keokuk |
| 13RB45 | United States | Kentucky | Limestone | Dennis |
| 13RB11 | United States | Ohio | Dolomite | Yellow Springs |
| 13RA4 | United States | Wisconsin | Dolomite | Milwaukee |
| 13RA12 | United States | Ohio | Dolomite | Kelley's Isl. |
| 13LB7 | United States | Minnesota | Dolomite | Canon City |
| 13LB32 | United States | Minnesota | Limestone | Canon City |
| 13LB20 | United States | Iowa | Limestone | Mt. Pleasant |
| 13LB15 | United States | Iowa | Dolomite | Buffalo |
| 13LA44 | United States | Kentucky | Limestone | Franklin |
| 13LA33 | Spain | Marble | Murcia, Murcia | |
| 13LA25 | United States | Kansas | Limestone | Winfield |
| 13LA19 | United States | Iowa | Limestone | Davenport |
| 12RB6 | United States | Wisconsin | Dolomite | Manitowoc |
| 12RB11 | United States | Kentucky | Limestone | Lulbergrude Cr. Clark Co. |
| 12RB1 | United States | Indiana | Dolomite | Decatur |
| 12LB21 | United States | Missouri | Limestone | St. Louis |
| 12LB10 | United States | Ohio | Dolomite | New Paris |
| 12LA6 | United States | Wisconsin | Dolomite | Duck Cr. Station Brown Co. |
| 12LA10 | United States | Ohio | Dolomite | Euphemia |
| 11RB41 | United States | Tennessee | Sandstone | Church Mt. Granger Co. |
| 11RB25 | United States | Utah | Limestone | Payson |
| 11RA5 | United States | Michigan | Dolomite | Sibley's Station |
| 11LB8 | United States | Kansas | Dolomite | Topeka |
| 11LB12 | United States | Ohio | Dolomite | Eaton |
| 11LA3 | United States | Wisconsin | Dolomite | Waukesha |
| 11LA11 | United States | Kentucky | Dolomite | Bardstown |
| 10RB4 | Austria | Marble | Castione | |
| 10LA24 | United States | Kansas | Limestone | Grenola |