| Year | 1993 |
| Date | 03-Sep |
| Volume | 171 |
| Issue | 3,952 |
| Page | 268 |
| Category | Optical |
| Part | 1 |
| Title | Biological Microscope and Vertical Illuminator |
| Author | H.A.Holland |
| Notes | Introduces a new project. Purchased components, construction, foot, limb support, keep screw, limb stops, axis pin, washer, clamp lever |