Unequal hours
| Type: | Unequal hours |
| Geometry: | Arc |
| Unit of measurement: | Times of day |
| (Numbering) starts at: | 0 |
| (Numbering) ends at: | 12 |
| Numbered: | Every 2 |
| Repeats: | 1 times |
| Divided every: | 1 (Times of day) |
| Notes: | The arcs are numbered 1, 3, 5, 6, 8, 10 and 12 |
Scale located on: Tympan, Womb or Back .
Location(s) detail:
| Back - central: | Scales located across large portions of the back of the instrument (Back - central) |