| Year | 1941 |
| Date | 06-Nov |
| Volume | 85 |
| Issue | 2,113 |
| Page | 365 |
| Category | Locomotive |
| Part | |
| Title | 1831. A 3 1/2in. Gauge I.C. Engine-driven Locomotive |
| Author | Edgar T.Westbury |
| Notes | Oil pump design, face view and section, details of pump pinions, construction of pump |