| Year | 1990 |
| Date | 05-Jan |
| Volume | 164 |
| Issue | 3,864 |
| Page | 20 |
| Category | Horology |
| Part | 3 |
| Title | Phoeboscope |
| Author | H.Christopher H.Armstead |
| Notes | Describes the background, construction and uses of his unique sundial. Use of the Phoeboscope as a clock, se of the Phoeboscope in the Southern Hemisphere, LST scale setting, instrument accuracy, materials and finish, commentary |