| Year | 1990 |
| Date | 06-Jul |
| Volume | 165 |
| Issue | 3,876 |
| Page | 42 |
| Category | Nautical |
| Part | 7 |
| Title | Borderer. A twin cylinder marine steam engine design suitable for 1/2 in. to 5/8 in. Bore and Stroke |
| Author | John P.Bertinat |
| Notes | Expansion links, drag links, weighshaft levers, die blocks, reversing lever, remaining valve gear details, pipework |