Cotangent
| Type: | Cotangent |
| Style: | Cotangent, arc |
| Geometry: | Circular, concentric |
| Repeats: | 2 times |
| Notes: | Two scales, problably for fingers and feet, have been engraved but not labeled or numbered. |
Scale located on: Tympan, Womb or Back .
Location(s) detail:
| 3: | Lower left quadrant of outer circular on back of instrument. (3) |
| 3: | Lower left quadrant of outer circular on back of instrument. (3) |