| Year | 1953 |
| Date | 17-Sep |
| Volume | 109 |
| Issue | 2,730 |
| Page | 348 |
| Category | Optical |
| Part | |
| Title | A Research Microscope |
| Author | Lawrence H.Sparey |
| Notes | Mechanical revolving stage, stage base aaembly, mechanical stage, specimen-slide clips, vernier scales, engraving method, photographic method |