| Year | 1950 |
| Date | 29-Jun |
| Volume | 102 |
| Issue | 2,562 |
| Page | 935 |
| Category | Horology |
| Part | |
| Title | An Ultra-Miniature Electric Clock |
| Author | Stanley J.Wise |
| Notes | Forward by the Technical Editor. Enlarged view of the mechanism, pawls, dimensions, wheelwork dimensions, wheel and pinion data |