Degree
| Type: | Degree |
| Style: | 90° - 0° - 90° - 0° running clockwise from the 90° point (i.e. the throne) |
| Geometry: | Circular, concentric |
| Unit of measurement: | Degrees of arc |
| (Numbering) starts at: | 0 |
| (Numbering) ends at: | 90 |
| Numbered: | every 6 |
| Repeats: | 2 times |
| Divided every: | 6 (Degrees of arc) |
| then every: | 1 (Degrees of arc) |
| Notes: | In the lower two quadrants, this scale is subdivided to 3. |
Scale located on: Tympan, Womb or Back .
Location(s) detail:
| 1: | Upper right quadrant of outer circular on back of instrument. (1) |
| 2: | Upper left quadrant of outer circular on back of instrument. (2) |
| 3: | Lower left quadrant of outer circular on back of instrument. (3) |
| 4: | Lower right quadrant of outer circular on back of instrument. (4) |