| Year | 1950 |
| Date | 27-Jul |
| Volume | 103 |
| Issue | 2,566 |
| Page | 146 |
| Category | Locomotive |
| Part | |
| Title | Lobby Chat - Automatic Signalling |
| Author | LBSC |
| Notes | Full-size track circuit, from moving to fixed wire, apparatus on old L.B. & S.C.R. signal, how it works, improvised pressure-operated switch, the signal equipment, colour-light signal,three-aspect, viaduct section, the Curly patent combination signal |