| Year | 1923 |
| Date | 26-Apr |
| Volume | 48 |
| Issue | 1,148 |
| Page | 424 |
| Category | Locomotive |
| Part | |
| Title | Locomotive News and Notes |
| Author | Chas. S.Lake |
| Notes | Light Engine Mileage. New Style of Numbering and Lettering for Locomotives. London and North Eastern Railway ("Somme") |