Shadow square
| Type: | Shadow square |
| Style: | Tangent/Cotangent |
| Geometry: | Circular, concentric |
| Unit of measurement: | Fingers |
| (Numbering) starts at: | 1 |
| (Numbering) ends at: | 12 |
| Numbered: | Every 1 |
| Repeats: | 4 times |
| Divided every: | 1 (Fingers) |
| then every: | 0.2 (Fingers) |
| Notes: | This "shadow square" is unusual in that it appears on the limb. Consequently, it has a circular geometry. Further, the scale is repeated on the top and the bottom halves of the instrument |
Scale located on: Limb .
Location(s) detail:
| outer3: | third outermost scale on the front of the limb (outer3) |
Inscription(s):
| Type: | Scale label |
| Content: | VMBRA VERSA |
| Translation: | Vertical shadows |
| Language: | Latin |
| Script: | Italic |
| Notes: | This label appears twice in the upper and lower portions of the limb |
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