| Year | 1967 |
| Date | 02-Jun |
| Volume | 133 |
| Issue | 3,322 |
| Page | 533 |
| Category | Railway |
| Part | |
| Title | An Automatic Signalling System |
| Author | Cyril E.Smith |
| Notes | Installed on the miniature railway at G.E.C. (Coventry). General description, circuit, auto working, manual working, call-on facility |