| Year | 1993 |
| Date | 07-May |
| Volume | 170 |
| Issue | 3,944 |
| Page | 543 |
| Category | Countryman's Steam |
| Part | 6 |
| Title | Orcop Yeoman. A Portable Engine |
| Author | John Haining |
| Notes | Concentrates on the cylinder steam supply. Types of regulator, preparing for the governor, boiler expansion |