| Year | 1989 |
| Date | 01-Dec |
| Volume | 163 |
| Issue | 3,862 |
| Page | 716 |
| Category | Stationary Engine |
| Part | 2 |
| Title | Maudslay's Annular Engine |
| Author | Anthony Mount |
| Notes | Describes his model of a very unusual prototype steam engine. Machining order, assembly, the moment of truth |