| Year | 2023 |
| Date | 30-Dec |
| Volume | 230 |
| Issue | 4,707 |
| Page | 85 |
| Category | Locomotive |
| Part | 1 |
| Title | LNER A4 Development - Mallard |
| Author | Robert Hobbs |
| Notes | Restores a rather battered A3 as an A4. The author's 2 1/2 inch gauge A4 Mallard, Fiona standing in front of Mallard, the donor A3 chassis, casing formers, casing mock-up, first attempt at welding |