| Year | 1956 |
| Date | 22-Mar |
| Volume | 114 |
| Issue | 2,861 |
| Page | 464 |
| Category | General |
| Part | |
| Title | Gateway to the pool |
| Author | Joseph Martin |
| Notes | Tower Bridge and its steam engines. Voice of "The Thunderer", steam for power, supplying the power, view during construction, the signalling system, the floating tower |