| Year | 1979 |
| Date | 20-Apr |
| Volume | 145 |
| Issue | 3,607 |
| Page | 434 |
| Category | Locomotive |
| Part | 15 |
| Title | Bulldog/Dukedog. A 5 in. gauge G.W.R. 4-4-0 locomotive |
| Author | Keith Wilson |
| Notes | Bogie side control, how it works, centre block, guard iron, bogie hornstays, shock absorbers, spring links, spring hangers |