| Year | 1939 |
| Date | 23-Nov |
| Volume | 81 |
| Issue | 2,011 |
| Page | 585 |
| Category | Photographic |
| Part | |
| Title | Simple Photographic Enlargers |
| Author | "Kinemette" |
| Notes | Inexpensive apparatus. Makeshifts not recommended! Working principles of enlargers, light trapping, illumination |