| Title | Paper | Date | Type | ||
|---|---|---|---|---|---|
| 1 |
 |
Mt. Pleasant Pyramid | 1912-04-05 | unclassified | |
| 2 |
 |
Mt. Pleasant Pyramid | 1912-04-05 | unclassified | |
| 3 |
 |
Mt. Pleasant Pyramid | 1912-04-05 | unclassified | |
| 4 |
 |
Mt. Pleasant Pyramid | 1912-04-05 | unclassified | |
| 5 |
 |
Mt. Pleasant Pyramid | 1912-04-05 | unclassified | |
| 6 |
 |
Mt. Pleasant Pyramid | 1912-04-05 | unclassified | |
| 7 |
 |
Mt. Pleasant Pyramid | 1912-04-05 | unclassified | |
| 8 |
 |
Mt. Pleasant Pyramid | 1912-04-05 | unclassified | |
| 9 |
 |
Mt. Pleasant Pyramid | 1912-04-12 | unclassified | |
| 10 |
 |
Mt. Pleasant Pyramid | 1912-04-12 | unclassified | |
| 11 |
 |
Mt. Pleasant Pyramid | 1912-04-12 | unclassified | |
| 12 |
 |
Mt. Pleasant Pyramid | 1912-04-12 | unclassified | |
| 13 |
 |
Mt. Pleasant Pyramid | 1912-04-12 | unclassified | |
| 14 |
 |
Mt. Pleasant Pyramid | 1912-04-12 | unclassified | |
| 15 |
 |
Mt. Pleasant Pyramid | 1912-04-12 | unclassified | |
| 16 |
 |
Mt. Pleasant Pyramid | 1912-04-12 | unclassified | |
| 17 |
 |
Mt. Pleasant Pyramid | 1912-04-12 | unclassified | |
| 18 |
 |
Mt. Pleasant Pyramid | 1912-04-19 | unclassified | |
| 19 |
 |
Mt. Pleasant Pyramid | 1912-04-19 | unclassified | |
| 20 |
 |
Mt. Pleasant Pyramid | 1912-04-19 | unclassified | |
| 21 |
 |
Mt. Pleasant Pyramid | 1912-04-19 | unclassified | |
| 22 |
 |
Mt. Pleasant Pyramid | 1912-04-19 | unclassified | |
| 23 |
 |
Mt. Pleasant Pyramid | 1912-04-19 | unclassified | |
| 24 |
 |
Mt. Pleasant Pyramid | 1912-04-19 | unclassified | |
| 25 |
 |
Mt. Pleasant Pyramid | 1912-04-19 | unclassified |