| Year | 1919 |
| Date | 22-May |
| Volume | 40 |
| Issue | 943 |
| Page | 400 |
| Category | General |
| Part | |
| Title | An Experimental Speedometer (Bicycle) |
| Author | |
| Notes | The instrument mounted on the cycle handlebar, arrangement of the drive from front wheel, sketch showing the construction & arrangement |