| Year | 1979 |
| Date | 17-Aug |
| Volume | 145 |
| Issue | 3,615 |
| Page | 964 |
| Category | Locomotive |
| Part | 19 |
| Title | Bulldog/Dukedog. A 5 in. gauge G.W.R. 4-4-0 locomotive |
| Author | Keith Wilson |
| Notes | Explanation diagram for compensated brake gear, brake gear, break gear. levers, blocks |