| Year | 1955 |
| Date | 16-Jun |
| Volume | 112 |
| Issue | 2,821 |
| Page | 680 |
| Category | Locomotive |
| Part | |
| Title | "L.B.S.C.'s" Lobby Chat. Automatic Signalling on All-Metal Tracks |
| Author | LBSC |
| Notes | The wasp in the jam pot, circuit for simple 3-aspect aspect, contact rail solves the problem, relays, car bogie contact arrangement, section of relay box, circuits simply explained, tail lamp earth wire (J.W.Cooper) |