Declination
| Type: | Declination |
| Style: | Declination scale, north or south of the equator |
| Geometry: | Linear |
| Unit of measurement: | Degrees |
| (Numbering) starts at: | 0 |
| (Numbering) ends at: | 90 |
| Numbered: | every 6 |
| Repeats: | 1 times |
| Divided every: | 6 (Degrees) |
| then every: | 3 (Degrees) |
| Notes: | The northern declination scale is numbered to 66°. The southern scale is numbered to 30° |
Scale located on: Rule, Alidade, Regular or Pointer .
Location(s) detail:
| Rule, left arm: | Scales found on the left arm of a rule or alidade. (Rule, left arm) |
Inscription(s):
| Type: | Scale label |
| Content: | ميل شمالى |
| Translation: | Northern inclination |
| Language: | Persian |
| Script: | Nashki |
| Notes: | |
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