| Year | 1991 |
| Date | 20-Sep |
| Volume | 167 |
| Issue | 3,905 |
| Page | 320 |
| Category | Steam |
| Part | |
| Title | Steam Generating Set |
| Author | Tubal Cain |
| Notes | Describes his model of the Coomber Engine and Gramme Ring Dynamo, one of the curiosities of Victorian engineering, picture on page 299 |