| Year | 2021 |
| Date | 22-Oct |
| Volume | 227 |
| Issue | 4,676 |
| Page | 554 |
| Category | Horology |
| Part | 14 |
| Title | An Astronomical Bracket Clock |
| Author | Adrian Garner |
| Notes | Makes a bracket clock showing both mean and sidereal time. First trial of the time train, sidereal intermediate arbors, the sidereal train, sidereal drive arbor |