| Year | 1915 |
| Date | 04-Mar |
| Volume | 32 |
| Issue | 723 |
| Page | 183 |
| Category | Electrical |
| Part | |
| Title | A 20-Cell Electro-Medical Constant-Current Battery |
| Author | G.Gentry |
| Notes | The current collector, details, settin up for facing arm of collector, back of double collector, front in "off" position, front of double collector with 16 cells in, section of double arm pivot |