| Year | 1919 |
| Date | 07-Aug |
| Volume | 41 |
| Issue | 954 |
| Page | 130 |
| Category | Electrical |
| Part | |
| Title | The Electrical Transmission of Photographs |
| Author | Marcus J.Martin |
| Notes | 6. The Teletrograph. Showing the effect of large capacity on an intermittent current, diagram of a line-balancer used to neutralise the effects of capacity |