| Year | 1929 |
| Date | 28-Nov |
| Volume | 61 |
| Issue | 1,490 |
| Page | 507 |
| Category | Horology |
| Part | |
| Title | Electric Chiming and Striking Clocks |
| Author | F.Booker |
| Notes | Diagrams of electrical connections, construction of clock switch, elevations and general aarangement of chiming movement |