| Trapdoor Part or Topic | The .45-70 Springfield Book I (pages) | The .45-70
Springfield Book II 1865-1893 (pages) |
Trapdoor Springfield Newsletter (pages) |
|---|---|---|---|
| Experimental Receivers or Breech Systems | 292-294, 296-302, 305-308, 310-312 | 31-32, 66, 364-365 | - |