Lunar position
| Type: | Lunar position |
| Geometry: | Circular, concentric |
| (Numbering) starts at: | 1 |
| (Numbering) ends at: | 28 |
| Numbered: | every 1 |
| Repeats: | 1 times |
| Divided every: | 1 (None) |
| Notes: | At the centre of the tympan is a scale for the lunar cycle |
Scale located on: Tympan, Womb or Back .