| Year | 1920 |
| Date | 09-Sep |
| Volume | 43 |
| Issue | 1,011 |
| Page | 203 |
| Category | Railway |
| Part | |
| Title | Railway Signalling Systems |
| Author | F.Raynar Wilson |
| Notes | Victorian Government Railways. Chapter 10. - Electro Pneumatic Power Plant. Illuminated diagrams, locking frame, roller switches & indication magnets in locking frame, signal selection, lay-out of facing joints |