| Year | 1915 |
| Date | 07-Oct |
| Volume | 33 |
| Issue | 754 |
| Page | 316 |
| Category | Nautical |
| Part | |
| Title | Model Power Boat Notes |
| Author | |
| Notes | Steering gears. Showing general arrangement of gyro control steering device, plan of gyro-controlled steam steering gear for model boats |