| Year | 1989 |
| Date | 01-Dec |
| Volume | 163 |
| Issue | 3,862 |
| Page | 728 |
| Category | Horology |
| Part | 2 |
| Title | Phoeboscope |
| Author | H.Christopher H.Armstead |
| Notes | Describes the background, construction and uses of his unique sundial. Description of the Phoeboscope, using the Phoeboscope as a compass |