| Year | 2021 |
| Date | 04-Jun |
| Volume | 226 |
| Issue | 4,666 |
| Page | 752 |
| Category | Horology |
| Part | 4 |
| Title | An Astronomical Bracket Clock |
| Author | Adrian Garner |
| Notes | Makes a bracket clock showing both mean and sidereal time. Sidereal wheel and outer (sidereal) chapter ring, sidereal wheel supports, references |