| Year | 1930 |
| Date | 10-Apr |
| Volume | 62 |
| Issue | 1,509 |
| Page | 341 |
| Category | Workshop |
| Part | |
| Title | The Inventor's Workshop |
| Author | Percival Marshall |
| Notes | Paper recently read before the Institute of Patentees. The value of drawings, using simple tools, workshop essentials, the choice of a lathe, general advantages of a workshop |