| Year | 1961 |
| Date | 27-Jul |
| Volume | 125 |
| Issue | 3,133 |
| Page | 119 |
| Category | Locomotive |
| Part | |
| Title | "Firefly", a GWR 4500 class 2-6-2 tank engine in 3 1/2, 4 3/4 and 5 in. gauges |
| Author | Martin Evans |
| Notes | Crosshead fixings, motion plates and some parts of the valve gear for the model in 3 1/2 in. gauge. Fitting the taper pins, valve gear links |