| Year | 1990 |
| Date | 02-Feb |
| Volume | 164 |
| Issue | 3,866 |
| Page | 162 |
| Category | Nautical |
| Part | 3 |
| 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 | Pistons, rods and crossheads, valve chest components, weighshaft brackets, steam flanges, lagging the cylinders |