| Year | 1925 |
| Date | 27-Aug |
| Volume | 53 |
| Issue | 1,270 |
| Page | 267 |
| Category | Electrical |
| Part | |
| Title | A Ten-Cell Electro-Medical Constant Current Battery for Ionization |
| Author | Geo. Gentry |
| Notes | General view, plan view, cell arrangement and wiring, case in section, section of collector switch adapted from C. Mark III apparatus |