| Year | 1956 |
| Date | 19-Apr |
| Volume | 114 |
| Issue | 2,865 |
| Page | 632 |
| Category | General |
| Part | |
| Title | Rotary Retrospect |
| Author | C.E.Page |
| Notes | Peacock-Topliff engine, Dewandre rotary combustion engine, Rider steam engine, Granville Bradshaw's engine, Beck's rotary i.c. engine, the Bradshaw prime mover, |