| Year | 1919 |
| Date | 13-Nov |
| Volume | 41 |
| Issue | 968 |
| Page | 448 |
| Category | Photographic |
| Part | |
| Title | An Electrically Operated Shutter Attachment for Camera |
| Author | "Electricus" |
| Notes | Device, attachment for use with a focal-plane type of camera, showing electrical trip gear mounted on camera, detail of the attachment |