| Year | 1976 |
| Date | 02-Jul |
| Volume | 142 |
| Issue | 3,540 |
| Page | 638 |
| Category | Locomotive |
| Part | 10 |
| Title | "Ella". A Heywood Locomotive for 3 1/2 in. gauge |
| Author | B.G.Markham |
| Notes | Blower valve, injector steam valve, injector water valve, auxiliary steam manifold, blowdown valve |