| Year | 1964 |
| Date | 01-Sep |
| Volume | 130 |
| Issue | 3,256 |
| Page | 650 |
| Category | Locomotive |
| Part | |
| Title | Pioneer Steam: Motive power for tortuous gradients |
| Author | P.J.Munro |
| Notes | Mountainous New Zealand lines, Class W at Chriastchurch, Ka class No 959, Ja class, Da class |