| Year | 1999 |
| Date | 23-Apr |
| Volume | 182 |
| Issue | 4,092 |
| Page | 515 |
| Category | Locomotive |
| Part | 3 |
| Title | A Pair of 1 1/2in. Scale S.A.R. Locomotives |
| Author | Basil Palmer (South Africa) |
| Notes | Looks at poppet valve gear. Poppet valve gear and cams, a tool for metal spinning, pistons, motion, timing of the valves |