| Year | 1953 |
| Date | 30-Jul |
| Volume | 109 |
| Issue | 2,723 |
| Page | 138 |
| Category | Optical |
| Part | |
| Title | A Research Microscope |
| Author | Lawrence H.Sparey |
| Notes | Some parts, tube assembly and pinion bearing, details of small components and pinion and rack data, helical gear cutting |