| Year | 1912 |
| Date | 06-Jun |
| Volume | 26 |
| Issue | 580 |
| Page | 550 |
| Category | Practical Letters from Our Readers |
| Part | |
| Title | Model Railway Signalling |
| Author | M.A.Read |
| Notes | Proposed alteration to wiring, dotted line showing complete circuit, plan of wiring for train to control signal behind it |