| Year | 1919 |
| Date | 05-Jun |
| Volume | 40 |
| Issue | 945 |
| Page | 444 |
| Category | General |
| Part | 3 |
| Title | The Principles of Typewriter Mechanism |
| Author | Nathan Sharpe |
| Notes | Blick. View of escapement mechanism, under view of machine, escapement mechanism, actuation of escapement, general rear view |