| Year | 1953 |
| Date | 09-Jul |
| Volume | 109 |
| Issue | 2,720 |
| Page | 32 |
| Category | Optical |
| Part | |
| Title | A Research Microscope |
| Author | Lawrence H.Sparey |
| Notes | Mirror and gimbal mount, limb and foot, spinning operation, body-tube slides, machining the vees, the slow-motion slide, intermediate slides, tube slide, bearing cap and bearing plate |