| Year | 1936 |
| Date | 28-May |
| Volume | 74 |
| Issue | 1,829 |
| Page | 517 |
| Category | Model Marine Notes |
| Part | |
| Title | Electrical Timing Gear for Model Speed Boats |
| Author | "Artificer" |
| Notes | A lap counting device, lap counting dial, setting gear, underside view of motion work showing electro-magnetic counter mechanism, underside of upper motion plate, housing the mechanism, line resistance, section of motion work |