| Year | 1997 |
| Date | 20-Jun |
| Volume | 178 |
| Issue | 4,044 |
| Page | 754 |
| Category | Stationary Engine |
| Part | 4 |
| Title | Quayle 25-25 Double Acting Slide Valve Engine |
| Author | G.P.Quayle (New Zealand) |
| Notes | Trunk guide, piston rods, crosshead, piston, connecting rods and caps, wrist pins, gland nuts |