| Year | 1999 |
| Date | 22-Oct |
| Volume | 183 |
| Issue | 4,105 |
| Page | 516 |
| Category | Optical |
| Part | 2 |
| Title | Optical Alignment for Machine Tools |
| Author | D.A.G.Brown & R.O.Stephen |
| Notes | Mirror block, reflecting prism, machine mandrel, lens tubes & assembly, graticule mount & clamp ring, eyepiece socket, checking alignment, blacking your microscope, anodising procedure, colouring the anodising surface, final assembly, optical components |