| Year | 1916 |
| Date | 11-May |
| Volume | 34 |
| Issue | 785 |
| Page | 318 |
| Category | Armament |
| Part | |
| Title | Munition Work |
| Author | The Rev. F.Clare Lees |
| Notes | Special large cone-centre for tailstock, elevation of plug for end of bomb tube, drill mounted on lathe for drilling rivet holes, the length gauge, drilling machine - by Goodell Pratt |