| Year | 1986 |
| Date | 03-Jan |
| Volume | 156 |
| Issue | 3,768 |
| Page | 42 |
| Category | Stationary Engine |
| Part | 16 |
| Title | Princess Royal & Goliath. Variants on Mid-Nineteenth Century Mill Engines |
| Author | Tubal Cain |
| Notes | Steam valve and pipework, driving the engine, appendix - boiler |